If you can get away with a pair of stereo speakers, I'd strongly recommend it. No matter how 'unidirectional' a manufacturer states an all in one is, it still sounds like all parts of a track are coming out of a single speaker, almost sounding mono to me. YMMV, but I personally really dislike that aspect of all in ones. Stereo speakers are vastly superior for things like instrument and vocal separation.
You would, yes.
If you can get away with a pair of stereo speakers, I'd strongly recommend it. No matter how 'unidirectional' a manufacturer states an all in one is, it still sounds like all parts of a track are coming out of a single speaker, almost sounding mono to me. YMMV, but I personally really dislike that aspect of all in ones. Stereo speakers are vastly superior for things like instrument and vocal separation.