Ever much of a difference between Amiga/Atari/or IBM PC ports?

[Soviet Conscript]

usually when i go to get a cross platform game i'll go out of my way to grab the most "definitive" version. takeing any enhanced graphics, added content and glitches (and there fixes) and just plain playability into account. generally i find hardcore gaming 101 to be an excellent resource for me on this matter

but i've been getting back into older computer games lately, especially RPG's and i was just wondering if in general there were major diffrences in games between the Amiga 500, Atari ST and PC IBM's that took advantage of the superiority of any system.

i'm not counting atari 8-bits or C64 ports because they are almost always inferior versions considering the more limited hardware

so were multipal ports of games like Bloodwych or Champions of Krynn better overall on any one system or where they all basicly the same on those systems?