So, behind the cut you'll find the list you all helped me make. It may not contain every suggestion because sometimes I just didn't know the books well enough to judge whether they would be right for the list, and sometimes I felt like they didn't fit either "middle grade" or "fantasy" enough for my personal whims. And it's exactly that, my own whims.
Feel free to copy for your own use and amend as necessary--this isn't a comprehensive list (though it feels darn close), but hopefully it's a great resource for any of us wanting to expand our reading. I know it will be for me!
Thanks for all your help.
* A Wrinkle in Time, Madeleine L’Engle
A Ring of Endless Light, Madeleine L’Engle
* Alcatraz vs. the Evil Librarians, Brandon Sanderson
Alice's Adventures in Wonderland, Lewis Carroll
The Amazing Maurice and His Educated Rodents, Terry Pratchett
* Artemis Fowl, Eoin Colfer
Babe: The Gallant Pig, Dick King-Smith
* Babymouse, Jennifer L. Holm & Matthew Holm (strictly speaking, this is a graphic novel, which opens up a can of worms, but it's so fun!)
Beauty, Robin McKinley
Bedknob and Broomstick, Mary Norton
Billy Bones, Christopher Lincoln
Boggart, Susan Cooper
Book of a Thousand Days, Shannon Hale
* The Book of Three, The Black Cauldron, Lloyd Alexander
* The Borrowers, Mary Norton
The Chaos King, Laura Ruby
* Charlie and the Chocolate Factory, Roald Dahl
* Charlie Bone,
Charlotte's Web, E.B. White
* Children of Green Knowe, L.M. Boston
Children of the Lamp: The Akhenaten Adventure, P.B. Kerr
* The Chrestomanci Chronicles, Diana Wynne Jones
Coraline, Neil Gaiman
* The Dalemark Quintet, Diana Wynne Jones
* Danny Dunn books (?)
Darkside, Tom Becker
The Deep Freeze of Bartholomew Tullock, Alex Williams
* Dragon Keeper, Carole Wilkinson
* Dragonlance: The New Adventures, various authors, including Tim Waggoner, Ree Soesbee, Dan Willis, Jeff Sampson, Christina Woods, Stephen D. Sullivan, and Stan Brown
* Dragon's Milk, Susan Fletcher
* Dragonsong, Anne McCaffrey (?)
Dreamhunter/Dreamquake, Elizabeth Knox
Ella Enchanted, Gail Carson Levine
Eva Ibbotson's books (I've meant to read her stuff for years but haven't ever gotten around to it)
* Fablehaven, Brandon Mull
The Faerie Wars, Herbie Brennan
* Five Children and It, E. Nesbit (and pretty much anything by E. Nesbit)
The Folk Keeper, Franny Billingsley
* The Gammage Cup
A Gift of Magic, Lois Duncan
Half Magic, Edward Eager
* Hall Family Chronicles, Jane Langton
* Harry Potter, J.K. Rowling
The Hobbit, J.R.R. Tolkien
The Hoboken Chicken Emergency, Daniel Pinkwater
* Howl's Moving Castle, Diana Wynne Jones (well... more YA, really, but House of Many Ways is more middle grade, so...)
* Hugo Pepper, Paul Stewart & Chris Riddel
The Indian in the Cupboard, Lynne Reid Banks (though perhaps should be phased off any recommendation lists, due to cultural inaccuracies, but it is a title that grabs kids)
* Inkheart, Cornelia Funke
* Into the Wild, Sarah Beth Durst
James & the Giant Peach, Roald Dahl (man, I loved this one in about 3rd or 4th grade)
The Key to Rondo, Emily Rodda
* Larklight, Philip Reeve
* The Last Apprentice, Joseph Delaney
The Last Dragon, Silvana de Mari
The Last Unicorn
The Light Princess, George MacDonald
* The Lightning Thief, Rick Riordan
* The Lion, the Witch, and the Wardrobe (Narnia), C.S. Lewis
* Little Sister, Kara Dalkey
* The Mad Scientists' Club, Bertrand R. Brinley
The Magic Thief, Sarah Prineas
Many Waters, Madeleine L’Engle (part of the Wrinkle in Time series, technically, but far enough forward that I kind of count it separately)
* Mary Poppins, P.L. Travers
Matilda, Roald Dahl
May Bird and the Ever After, Jodi Lynn Anderson
Mrs. Frisby and the Rats of NIMH, Robert C. O’Brien
* Mister Monday (Keys to the Kingdom), Garth Nix
The Mouse and His Child, Russell Hoban
My Rotten Life: Nathan Abercrombie, Accidental Zombie, David Lubar (ARC, to be published this August)
* The Mysterious Benedict Society, Trenton Lee Stewart
The Name of This Book Is Secret, Pseudonymous Bosch
The Neverending Story, Michael Ende
Nightmare Academy, Dean Lorey (I've got this ARC around here somewhere. This is the problem with not having my office finished--I'm not quite sure *where* it is. And not having read it yet, I'd thought it was YA, but hadn't looked at it hard yet.)
Of Mice and Magic, David Farland
* Over Sea, Under Stone, Susan Cooper
* Pendragon, D.J. MacHale
The Perilous Gard, Elizabeth Pope (not technically fantasy, and perhaps YA? But oh so good!) (?)
Peter Pan & Wendy, J.M. Barrie
The Phantom Tollbooth, Norton Juster
The Power of Three, Diana Wynne Jones
Princess Academy, Shannon Hale
The Princess and the Goblin/The Princess and Curdie, George MacDonald
The Princess Bride (kinda sorta--perhaps more YA?)
* The Princess Tales (Princess Sonora and the Long Sleep, etc.), Gail Carson Levine
* Protector of the Small, Tamora Pierce
* Ranger's Apprentice
* Red Dragon Codex, R.D. Henham
* Redwall, Brian Jacques
Savvy, Ingrid Law
Sea of Trolls, Nancy Farmer
* The Seeing Stone, Kevin Crossley-Holland
The Shadow Thieves, Anne Ursu
* Skulduggery Pleasant, Derek Landy
* Snow Spider (Magician trilogy)
Standard Hero Behavior, John David Anderson
* The Fairy Tale Detectives (The Sisters Grimm), Michael Buckley (I LOVE this series)
* The Spiderwick Chronicles, Holly Black and Tony DiTerlizzi (that's one that's on the young end, but still enjoyed by 9-10 year olds)
* The Stink Files, Holm & Hamel
Stoneflight, Georgess McHargue
* The Story of the Treasure Seekers, E. Nesbit
Stuart Little, E.B. White
Swan Sister, Terri Windling and Ellen Datlow
The Tale of Despereaux, Kate DiCamillo
* The Thief, Megan Whalen Turner (would this be YA or middle grade, really? I'm about to read it so will have a better feeling after, of course)
* The 13th Reality, James Dashner
* The 39th Clue, Rick Riordan et al.
Tom's Midnight Garden, Phillippa Pearce
The True Meaning of Smekday, Adam Rex
The Trumpet of the Swan, E.B. White
Un Lun Dun, China Mieville
* Vampirates, Justin Somper
* Warriors, Erin Hunter
Watership Down, Richard Adams
* The Wee Free Men, Terry Pratchett
Well Wished, Franny Billingsley
* What the Witch Left, The Wednesday Witch, The Secret Tree House, Ruth Chew
The Wind in the Willows, Kenneth Grahame
The Witches, Roald Dahl
* Whales on Stilts, M.T. Anderson
A Wolf at the Door, Terri Windling and Ellen Datlow (also in The Dark of the Woods)
* The Wonderful Wizard of Oz, L. Frank Baum



Comments
I hung out with Dean Lorey (Nightmare Acadamy) over the summer. He actually wrote the script for 'Friday the 13th part 9' (yes... he actually admits this) and 'Major Payne' and a bunch of episodes of 'My Wife and Kids'. Last I heard his book was being scripted and a director assigned by Universal. Definitely an MG for boys.
Is The Last Unicorn middle grade? Just the other day I was debating whether it was more YA or adult in its appeal, though of course it doesn't have to be just one ...