Super Mario All-Stars wasn't ported to the GBA.
Individual games of that collection were sort of ported, but the Mario Advance titles are all different versions that have enhanced features over the Super Mario All-Stars version.
They do add voice samples, and while initially somewhat irritating, they don't affect the games enough to have them count as proper candidates for this thread. They just don't.
So let me wipe the slate clean and start with an actual SNES conversion to the GBA that is not good:
R-Type III: The Third Lightening.
The port has issues with slowdown, as well as collision detection issues that don't occur in the original, and pretty badly sampled music.