The changes in the level design on Yoshi's Island doesn't bother me too much (Zelda on the other hand may take some fun from the game...), because in the GBA version you now have 8 new levels that are harder than most of the original ones, so in that regard you're still having a challenge out there to compensate those small modifications.
But again, that's just my way of seeing it.
I remember typing that without really thinking about it and then when I went back and read it before posting I couldn't stop laughing.
Just imagine if some studio actually did that... I can see the press going crazy already.
That is strange. Maybe you should see a doctor. hehe jk
It's not that I find the games ugly, it's just a few things that seem off. Like Mario's colors on SMW, and some yoshies in Island.
Mario wears red and blue, not pink and... some kind of greenish blue? Nothing big, really.
At least in GBA everything looks like they was "drawn" with pastel tones, so it feels more fitting. The SNES colors for Mario and Luigi are to rough for me, I guess. But even then, that doesn't bring the original games down or anything.
Another reason for liking SMW GBA more is because it actually has Luigi as a playable character with his personal sprite and gameplay. Even Yoshi acts different depending on what character you use.
You may already know this, but over at Zeldix you can find many bugfix and improvement patches for the SNES ALttP, like one that makes the Pegasus Boots behave like they do in AST.
Oh man, I didn't know about those! Thanks for sharing... The Roc Feather in ALTTP? OH GOD YES! Let it be good...
I couldn't stop jumping on the GBC games.