I've only tried the frontier so far myself but it's great. It throws and sticks very well with its bell shape. The price is right for those of us who are cash strapped dads with little boys who like to throw axes at things. It was hard for me to get used to as a working axe. I have been using standard poll ax handles with a fawns foot shape since I was a kid. I like having a ball on the end of my handle. Hockey stick tape has remedied a lot of that. That said, the thin bit on this little hawk, combined with a 19" handle make it a real wood eater. My first real foray with it was dropping a six inch elm. She bit deep and cut clean. I found the varnish on the handle had to go, and it went. The abrupt angle of the edge was easily relieved with a few passes of a file and an axe puck. This made it a far better chopper. Finally I ditched the set screw. If the head comes loose it's less labour to tap the head end on a log to snug it up than to have that stupid screw chewing away to wood under the eye.
The following assessments are from looking at these hawks and reading their specs. They express my personal preferences, so please don't get ticked if I insult your preference inadvertently. No disrespect is intended. The rifleman looks too heavy for my liking with a straight handle. The trail hawk I think I would find a little too narrow for chopping, although it's got that nice little hammer poll. The Norse looks like it would stick really well with that high point on the top, but it's light for the amount of edge that it has, so I wonder how deeply it would bite in chopping. The spike and the trench look groovy, but I couldn't justify those since, as a school teacher, I don't foresee getting deployed to Afghanistan or being attacked by privateers. The frontier is just right for me.