i would say, anything NOT polaris. why dont you just upgrade your blaster? look at mine. and 2 or 4 stroke? if you really want something bigger and more powerfull, just get a trx250r. at 13 i dont think you need a banshee, not to mention your parents would be idiots for letting you have one.
dude u shouldnt underestimate a trx250r...i have seen a piped and jetted trx250r put an embarassing beat down on a banshee 350 stock