Replying to Replacing Afterbangs

Hello everyone, I started skiing a couple years ago and bought some 177 cm Afterbangs for really cheap with Look PX JIB bindings. This set up has been fine so far but I am definitely moving out of the park more than I thought I would and find this set up to be a little heavy for me. I am 5'9" and about 145 lbs. I would still like to have a set up that I can take in to the park mostly hitting rails and nothing huge for jumps, 30 foot max. I really want something with a low swing weight and something light all together, also with maximum flex for butters and ollies. I am also going to be making trips out west maybe once a year to ski powder so I would love something a bit wider (90mm+) I could mount maybe -3 to -5 cm that could perform comfortably in powder. I have been looking mostly at the Armada ARV and the Line Chronics. They both seem to be pretty much exaclty what I'm looking for just not really sure how they compare to each other. If anyone can help me out with the specifics ie. which of the two is lighter, has more flex, flex patterns of the two etc. If I were to buy the ARVs should i go 165 cm or 175cm? or if I go for the Chronics 164 or 171 judging by my height+weight? I was also looking at the Line Blends, which turn me off because they seem heavier than the ARV or Chronic. Also any thoughts on the K2 domain or sight, Volkl kink, or Salomon threat or Rocker 92 or anything else that I don't know about?