This was actually quite hard. My voting ended up being bullshit because in some cases I just couldn't choose which game ends up off the list. Ended up with:
Betrayal at Krondor
Dark Sun: Shattered Lands
Fallout 1
World Of Xeen
Might and Magic VI
Planescape: Torment
The Elder Scrolls II: Daggerfall
Ultima Underworld: The Stygian Abyss
Wizardry VII
Pools of Darkness
This leaves out MM3, Quest For Glory (would've probably voted 2 or 3), Star Trail, Ultima 6 and 7 and Martian Dreams, Wizardry 6, and one of my favourite underrated gems, The Summoning, off the list, but I don't know what I can take out of the above to replace with. Leaving QFG and ST off really hurts, and it feels weird not having U7 on there either.
I don't like the way they've laid out the games though. Why is U7 a single game, and why are there 3 entires for WOX? WOX is a single game, with both parts completely interlocking, while both U7s are completely separate and technically have nothing linking them, hell even plotwise SI doesn't follow directly from BG.
Also, much as I love Fantasy Empires and wanted to vote for it, it's not an RPG. And if it is, then Warlords II and III should be on here as well. System Shock 2, fine, though I don't agree, but SS1?