Everyone hears a different range of frequencies so you really do need to go and listen to them yourself. Personally I dont like the alesis M1s, but I don't like mackies either (I know I'll get slated for this but I think they sound so clinical, especially with digital music). I know theyv'e got a flat freq response, but I like circle 5s with a little bit of colour adding a little bit of warmth, and I like the samsons. Not used the others so I can't comment on those....but it really is about your own ears.