Lookign to buy new snowboard next year. I try doing park, random jumps / free riding. waht size should i get also. im 5'7 5'8, 160pounds

prolly like 155ish would work unless ur looking for just a pow or just a freestyle deck..reverse cambered might be worth it if u do do a lot of pow and then some park as they can be more versatile. i would say demo as much as u can before you buy. 2012 stuff can be demo'd at some places.

im thinking of the Sierra Reverse Crew Snowboard 2010 atm in 151? would it be too short? we don't get much powder here so its mainly for freestyle / park. does anyone know which model the reverse crew is similar to from burton?

vrocker shape with process construction..i own a crew and have a joystick which is like the big brother to the RC..RC would be better if you plan on using it for jibbing/boxes...bigger kickers and/or pipe the crew is better. neither have infinite ride though so the break in period can be frustrating

151 is fine I am just about the same size as you and prefer boards 150-152.

The sierra RC is modeled after the burton custom vrocker
and the sierra stunt is modeled after the burton blunt

It' a good solid board at a decent price.

I prefer my Rome garage rocker over it but good board for sure.