I voted for KQIV (one of my FIRST adventure games besides QfGII), and an enhanced QfG3. But might I make a suggestion?
The poll has a corrected QfGIII request on it. I'm definately for that, but I would like it taken one step further. The story in the game is fantastic (IMHO anyhow), but honestly the combat was... lackluster at best. Even QfGI had some skill and timing in the combat (gotta wait for that ogre to step forward, or the brigand to step back from the shield), but in QfGIII all you do is hack hack hack. Even a mage and thief is better off just stabbing everything, especially if you don't have the timing fixes. A paladin walks over everything by spamming swing. I suggest, _IF_ anyone was to tackle QfGIII and clean out its bugs, I might also suggest revamping the combat some. We've seen what a dedicated group of coders can do with QfG's combat, why not make fighting in QfGIII a challenge and fun rather than just a choir?
On a related note on polishing up games, might I throw in a ballot for Quest for Glory I? I know, I know, Sierra did do a remake of I, but, lets all be honest, it was so cruddy most of us kept playing the EGA version. Of all the games, only IV came close to the VGA remake of I. It's neigh-impossible to beat the weapon master in VGA, things just randomly glitch and disappear, the spitting spoira (sp?) was just a pure annoyance even with maxed throwing/fetch, the warlock sticking around even after you tell him about Elsa (and making the room neigh impossible sometimes)... I could go on. Also, the portraits REALLY could use some work; they were absolutely hideous. And I've already covered rants about the combat system in my Two Cents for III. But, the part that I'd really, really like to see is actually expanding the game. As it was, story-wise, the first game was BY FAR the weakest. You walk into town, get told some stuff in the adventurer's hall, pat a sad fat man, then the rest of the game almost can be finished in one day. There's no direction, no plot beyond "ooo brigands and hey my kids are missing!" and the stuff that could really be a focal point of the game (namely Baba Yaga, whose spose to the the BBG of the game) is only just a nod along the path. A Quest for Glory I Redux: So You REALLY Want To Be a Hero? would absolutely rock my socks.
Plus, if I and III are cleaned up and possibly even expanded, we could have voice packs for 1-3.

Wishful thinking there.
Anyhow, thats my two cents.