ill answer before the sarcastic comments come in lol (feeling helpful)

i do not own any of those bikes, but the general question "im a newb, what entry level bike should i get" comes up about every week, and reading the responses it seems the kilo TT is the best bet. it can accept front and rear brakes, and i would highly suggest you get one. yes, you can "pedal backwards" because it is a fixed gear bike....the back wheel is a 'flip/flop' hub, meaning one side has a fixed kog (comes with bike) and the other side you can install your own freewheel kog (allows you to coast, need to buy extra) so you can just flip the wheel and reinstall to suit what you like best.