For me, many of the games that always appear on lists (FFVII, MGS etc) have lost their lustre for me over the years, what with my rediscovery of better games from even older systems. Now I have a much more mixed list with some more unusual games.
Adventures of Alundra
Bloody Roar 2
Brahma Force
Descent 2
Diablo
Future Cop L.A.P.D
Front Mission 3
Gauntlet Legends (is this what you meant by Gauntlet Legions or have I missed out on a Gauntlet Game??)
Hexen
Machine Hunter
Rival Schools
Sentient
Sentinel Returns
Suikoden
Tenchu
The Hunter
Unholy War
Vandal Hearts