A lot of people are down on Atari 800 Asteroids and Space Invaders, but I don't think they're too bad. Asteroids in particular offers a variety of four-player options that no other version has.
Deadly Towers on NES is one people hate but I adore it! (Thag is right!), ...Maybe Cool World on SNES, I like how bizarre it is and the music, and Jinks on 7800, it's Unique, Artistic and Brilliant!
The atmosphere, music, and graphics of Chakan The Forever Man were Awesome, but I think the sluggish controls hurt it a bit, like maybe it was just too ambitious or something...(I like it, but it could have been near perfect w/ better controls)...