Ive read/heard stock banshee wheels are pretty damn bulletproof. I have banshee wheels/hubs on the rear of my blaster and they seem really strong. Pretty thick too.
Buddy of mine has a banshee. Trails around here get super rocky and hairy, they beat you up pretty bad. We have been riding that banshee on our nasty trails for a few years now and his wheels are fine.
Id say stock banshee wheels are pretty hard. They seem to take a beating better than my blaster steelies.