Lucas Arts' Days of the Tentacle: It was even previewed in some Amiga magazines. The game has turned out to be the finest hour in Adventure gaming.
I also wished some SNES games would be ported to Amiga: Rock & Roll Racing, Ren & Stimpy, Darius Twin to name but a few.
I agree with you about the poor Bionic Commando version. I cannot understand why the game uses a 'push'-scrolling. If the programmers had spent a couple hours more finetuning the game it would turn into a classic, eventually.