Im only a month late on this thread but I love either guns the same. I have 2 MP5's and 3 M4's and its hard to choose which one i like more to play w/. the M4's gonna be easier to get stuff for cuz of the platform. also if u like to spray, i'd stick to an M4 cuz u can get larger mags for them (450bb's for the M4 (ics mag) vs 220 bb's for the MP5) The looks cool in whatever form it comes in. hell either is a great gun man.

-Carlo