So I will try to answer your questions. Both Ak's and M4's are poular. The AK has a version 3 mechbox which is commonly thought to be better than the version 2 which is in the M4. The M4 is a more popular gun however. Everyone seems to have one, which can be a blessing and a curse. It is a curse well because your M4 will not be very original. But thats not totally bad as because its so common its easy to find tons of parts new and used for it. Mags are easy to come by and if you run out in a game your team mates will be able to "loan" you a mag. Its really a personal choice seeing as performance wise they will act the same depending on what upgrades you put into them.
By the way I am an M4 fan myself.
Last edited by Eeyore; April 13th, 2009 at 00:35..