I actually often vote for games which I don't particularly want since the option to have games on here DRM free is more valuable than strictly being in the mindset to want to play that game. That said, just some games I really want on here:
Codename Panzers: Cold War:
They said this was incoming when the first two games dropped and I am still waiting.
All the Sims games especially the first and second:
I unfortunately have discovered that I really enjoy the even numbered games (I play an old copy of 2 and 4 on my Xbox).
Mech Commander and Warrior series:
I have Mech Commander 2 and have managed to get it to work but it's often finicky and I have not always been able to get it to work on a system in a while. I have Mech Warrior 2 I believe three times, once on Playstation and twice on PC I think. Similarly, I want the PC version to actually work.
Wolfenstein (2009):
I actually liked this game on 360 and would love it either here or on back compat, preferably both. In case anyone is curious, Activision does not own the rights to this game anymore and Bethesda is the rights holder. Unfortunately, Bethesda does not like this game and pretend it does not exist aside from a few continuity nods.
I'll go on and say basically every Sid Meier and Will Wright/Maxis game I come across on the wishlist.
Every Diablo game not already here including complete editions of Diablo II and III:
I love this sub genre and would love to play II at all and III on PC.
Every LotR game I come across with emphasis on Battle for Middle-Earth Series and War in the North:
I expect that a digital re-release of the Anthology collection would tank the value of my physical copy but I an willing to accept that. War in the North looks good but I never felt like playing it on my consoles. I may get over that some day.
Everything id Software related including DOOM and Enemy Territory Quake Wars:
Frankly, I don't have the space to waste on a less good version of DOOM on my Xbox and Quake Wars (I know it was developed by Splash Damage) is just a great game.
Rise of Nations series including Legends and Age of Empires series:
I love these two series. I can do without AoE IV as it legitimately does not interest me yet, but I'd still vote for it since I never know if I'll feel the bug.
Stronghold Legends:
I have just always loved this game and while the Stronghold Collection is DRM Free and is generally the version of those games I play, this and Stronghold 2 (a game I do not like very much) would be very welcome. Stronghold 3 perhaps but I am going to assume that Crusader 2 is better for now.
Medal of Honor series:
When I say that I really just mean Airborne but even the less than good modern games might be worth a revisit some day (I have not yet, but they might).
Call of Duty 1 thru World at War and maybe until Black Ops II:
These are good titles and I would appreciate having the games after WaW even if not very much.
Warcraft III:
I have wanted this game for a while but have resisted installing it since I get mixed results on what the DRM is.
Zoo Tycoon series:
These games are just enjoyable since I enjoy the relaxed sim nature as well as reading in the encyclopedia about the animals. I realize there are better places to read such things but it makes the game fun regardless. While they're at it, I really liked Sea World Tycoon.
Last thought, there are a lot of individual requests for Lords of Shadow in the Wishlist.
