If by being "one of if not THE most entertaining people in skiing to watch on film' you mean his weak-ass comedy segments, I think we're just going to have to stay disagreeing, lol. People get on Colby's nuts because he's so 'funny', which is a matter of taste, sure, but I've always though that shit was waaaay corny.
His nose grabs were INIMITABLE only because he was the first dude doing them. That was three years ago. Now that everyone else has caught on, he's not out in the front anymore. It's pointless to debate style, I guess, since we've both already got opinions formed, but I'd argue that his park shit has less originality to it than Tanner's by far. No doubt he's got a big bag of tricks that he can stomp on the regular, but as far as pros go, I think he's pretty average, and not an adequate substitute for dudes like Tanner and Sammy (http://www.vimeo.com/1616188) who have way more distinct styles.
Plus, I think TGR movies are fucking boring, so I'm not going to be stoked that one of the most stellar skiers is opting out of a guaranteed sick mini-segment at JOSS (which can also parlay into sick shots for a fall movie segment) just to go ski some pow with TGR.
This isn't to wish any ill towards Colby, sick for him that he gets to go, but as a fan, I'd rather see Tanner rip shit up.