There are a couple of spells...but really, not that much.
Don't get me wrong, I love AD&D. I just don't miss it. If a game of AD&D popped up on my radar, I'd play, no question. But currently, 3.X is my D&D of choice.
You could take this and replace "3.x" with "4e(and maybe pathfinder)" and it would be me.
I didn't read past this early post, like 5th or something, but based upon the OP and because I haven't read past my quoted post, my unadulterated opinion is that I miss....
I also miss the nostalgic feeling. It was born on a trust between player and DM, that even though DM made sh*t up most of the time and the RAW was a loose breeze, at most, our gamemaster wanted us to win as much as we did. But a great DM in an AD&D game can make the (wonkiest) ruleset seem seamless, and make the vast mystical set of houserules -- sometimes introduced on a whim (and it made sense!) -- feel unfettered and simple.
But it all depended upon a good DM. My friend Eric Welling. He was a wondrous and mind-blowing DM.
I loved the rules-heavy, RAW strict, PCs = NPCs, CR/ECL = balance, nature of 3.x. I really did, until I started running the APs put out by Paizo, Shackled City, Savage tide, Age of Worms (we played in that order, not the release order). These campaigns were awesomely written, but a BEAST to run as a DM in to the mid-high levels. The stories, wild and interesting. But... they were all meat-grinders in the early levels and massive DM homework in the latter levels.
I grew weary of DMing 3.x... Maybe it's the 100 proof peppermint schnapps talking, but who knows.
I now run 4e. And I do it like I did back in 1981.
I try to DM 4e like I did back in those AD&D Days. So I miss very little, as I like the ruleset but I still get to revel in the ol' skool feel I get when I DM my current group. It feels like AD&D again.