If you're looking for a hull that's not too shabby in the armor department and is relatively fast to play with, then the Hornet is your best bet!
Although the Hornet is considered as a light hull, it's more like a compromised version of light and medium hulls. It has slightly more speed than your average medium hulls, but has slightly more armor than the common light hulls.
However, this hull can be pretty hard to maneuver due to its tendency to skid around corners. In the right hands though, a player can do really well with this Hull. It's suitable for most types of guns, but we've noticed that most players in Tanki X tend to match this hull with the Railgun turret.