I just upgraded too! I don't usually hang out in the parks either. I consider myself all mountain.
My top choices were Burton Cartel, Union contact pro, k2 company, and rome 390 boss.
I end up buying rome 390 boss, and it is freaking awesome. It's mid flex, and they are very comfy and responsive.
I really wanted to try the K2 company based on reviews but holy crap. I can't find them any where. They are all sold out. I guess it was too late in the season.
I don't know about ride capo, but I had a ride bindings. It's ok. Grant that it was more beginner bindings i had but I didn't realize until I got 390 boss that it totally sucked.
I'm don't have much to offer for nitro machines. It wasn't even on my list.
Good luck with buy. Just don't do what I did. I looked/research so long that I kept on changing my mind every other day. I end up with my new bindings toward the end of season. I wish I bought it sooner.
Also, lot of those should be on sale too.