Well, here's the deal.
If you want it strictly for hunting, and really don't care about "getting into" muzzleloaders as a hobby, I'd get one of the short, lightweight in-line carbines. I say short, because in my area, it's mostly brush hunting, and shots rarely are over 75 yards. If, where you are going to be hunting a flat spot, get one of the longer barreled long range in-lines- but they are heavy to carry.
If you want to get into muzzleloading and this is going to be your first foray into a hobby you might enjoy, get a good percussion or flint longrifle.
It's all in what you want. Give us a bit more information, and we can point you in the correct direction.
