Streets of rage and Golden Axe are fairly crap. Not the worst games ever but threadbare versions that lose a lot of what makes the Mega Drive games great.
Neither game was 2 player, the music hugely suffered and the main sprites are about 1/4 size.
Sonic and Sonic 2, whilst less visually striking, are actually better on MS to me than MD, have replayed both in the past year. They play more methodically and less speedy, so you actually feel more in control.
Lots to be said for both versions, for differing reasons.
Find it more insane that this existed:
https://images.app.goo.gl/RPpkgyqDZV6bpYmK7