I had a copy on SNES and really didn't like it. The preset party and garish visuals really didn't work for me at all

It's funny how sometimes the SNES actually suffers from having more colors than the Mega Drive. It happens in quite a few games that the graphics artists tried their best to use many colors and shaded a lot, the result being a very smoothed over picture, like looking through milk glass or something. Sometimes it helps in MD versions that the colors are fewer, and M&M II is one such example for me... it could use more color on MD and look better, it's not a good looking game anywhere o be honest, but the SNES version is not a good example of how to do improve it imo.

Eye of the Beholder is a better example because it generally has better graphics. But the same difference with a benefit forthe Sega CD from fewer colors is seen:

Or look at Aladdin; Capcom shaded a lot. something that was not done in the cartoon. The MD version has much less color, but remains true because of the cel shaded look while the colorful SNES version looks wrong.

Or Turtles Tournament Fighters... characters blend in so much with the backgrounds because of the palette and the smooth shading everywhere. The more contrastful, less colorful MD game is more appealing imo.

Naturally this is not always the case, many games definitely gain from the added colors of the SNES. But I always find it interesting to compare, also because I learn for my own stuff that way.

Pictures are worth a thousand words. Not until you see the still shots of the games does it become more clear. Nintendo's use of more colors seem more kid like and the Mega Drive/Genesis color choice seems more grownup.

Which is why I prefer most MD titles over their SNES counterparts. 

Even worse were the graphics, colour and preordained parts of M&M3: Isles of Terra on SNES which had terribly bright and childlike graphics.

Yes, that shot of M&M III looks really horrible.

You could say that the Genesis/Mega Drive versions LOOK better, but I always liked the way the SNES version of Aladdin better. That, and the Genesis version of Tournament Fighters is pretty much awful.

I definitely won't argue there. This was purely about the use of color and that more is not always better if it's not used wisely.

Tournament Fighters is a bad game on MD; it's not good on SNES either, but not as bad as the MD game.

As for Aladdin I think both of them are basically really good games. I do prefer the MD game, and the graphics might have to do with it as they just add to the fun for me; but the SNES one is good too. I just generally like David Perry's 16-bit games, and Aladdin was his highlight before Earthworm Jim. Some people can't stand his games though.