Replying to Park/Pipe Skis and Size

Note: New to forum and accidentally posted in equipment section, so posted here instead.

'm instructing at Breck. over winter, so my time this year will be left to the terrain park at Keystone during the night. I'm an all mountain skier with Volkl Karmas. I'm looking at getting some park/pipe skis also. I have been leaning toward the Anthems quite a bit, but I am up for opinions on other options. Also, what size ski do I need for park/pipe? I am 6', 175-185, and ride 177cm on the Karmas. I appreciate all the advice.