Some favorites of mine:
Mechwarrior 2 (PC)
Return to Zork (PC)
Wolfenstein 3d (PC)
Zoids (C64)
Agent USA (C64)
Space Hulk (PC)
Outcast (PC)
Ultima series (various platforms)
I don't know about the new games, but some of the t64/d64 images I have that used to work don't work any more. Gives me "?DEVICE NOT PRESENT ERROR" on commando.t64, jumpman.t64 etc. I don't know what is causing it. I am looking for beta 09 back.