AT2 with the pneumatic wheels is the bomb!
Got the AT2 a few months ago and it is an amazing board. It will pretty much go over any terrain but hard packed dirt singletrack is the most fun. Very fast- like 27mph on pavement- and the brakes are bomber. My old board had a hub motor and I'll never go back. I haven't even tried the cloud wheels yet because the pneumatic wheels are just amazing at sucking up bumps. Ripped it down the beach this weekend and with a tailwind it was scary fast.