Mike, welcome to this end of the world, its great and xbows are addicitive.
The best advice you got so far is to go and handle and shoot the bows. The more you're going to shoot the more you want an xbow without cams/wheels. If you are going to hunt and practice to hunt then all of the above bows will be more than you need. We have one resident arrow junkie that shoots probably near two thousand arrows (maybe more) a month. Hehehehehe must be real obnoxious to have him around the house!!! Squirrel's the name and he's had a few repairs on his wheel bow because they weren't meant to be pounded like that!