1. x-terminator deluxe or hyper pbs/pcr
2. mbx-5 or k2/k3
3. all of them
4. depends where you live, for me x-terminator
5. pretty much all buggies are good. i have an x-terminator deluxe, and in the week that i've had it i've beat the crap out of it and nothing has broken except for the wing, and i was kinda expecting that