Welded aluminum, deep and wide. If you're hunting where the hogs are, I'd imagine you'll be pulling the boat over/through obstacles, so a boat that's light enough to handle is a plus. To much extra size and motor makes it a real pain to get in and out of rough areas. It's amazing how little motor those flat bottom aluminums can get away with. My buddies got an al. 18' with a 25 Merc and that sucker with carry 4 of us with cooler/ dogs etc. and still ride out!
Many times we've had to portage it across sandbars in order to keep going. It's also convenient when there's no boat ramp, just pick it up, throw it in and go.