IMO the biggest question when deciding is what's more important. Stability or weight. You give up one for the other. I have both the old town predator 13 & the predator MK (with motor). Both are very stable. You almost have to want to flip them, leaning over to pull up a big fish won't do it. But they are 85 - 90 pounds empty. You're not going to toss these onto a car top carrier by yourself.
Next would be gadgets they come with. Old town has a paddleclip, storage area with bungee cords, rod holders and a tray shelf under the seat for 2 3600 tackle boxes, other makers probably have similar features.
Finally I'd consider either a pedal version or built in trolling motor version. Either one allows hands free operation while your bringing the fish in or maneuvering without putting down your pole. Though the motor version will require you to register it as a motor boat in most states, the pedal version won't.
As for the 2 predators I have, MSRP is between $1300 - $3000 depending on widgets you want. My MK has a fish finder, AGM battery and a 40W solar panel to keep a constant charge on the battery, if the suns out I'm charging the battery, even when I'm fishing from it.