The Galatic, in terms of stats, seem to be better than all the others - but then again - the UMP45 is usually always the best SMG in games, at least for the average player. I still love the looks of both the Bulpdaun and the Carb-9, but when you're holding the Bulpdaun, it just looks like a grey brick.
I will probably end up with the Galactic, but I am hoping that my play-style will complement the Tampa, because, in spite of its size, it just looks badass to the point of looking ridiculous when you add tons of attachments to it. So that's my pick at least!
So basically, the point of my post is to let all you SMG-users out there share your thoughts as to the three questions listed above and why!