I've been throwing all of my Destroyers trying to find which combination of plastics I want in my bag. It is difficult because each version I have possesses it's own merit.
Echo Star (174&175)--These are super domey and consistently the longest flyers (along with the Pro). I have broken one of them in so that it flips up from a little hyzer and the other one is still stable, requiring a full power rip to get a little bit of turn. I like these a lot, though I'm still not quite familar enough with the broken in one to throw it consistently. It gets a lot of movement for me now, but once I get used to it I should be able to shape its line a bit better. The main weakness of the Echo Star is the huge dome that gets pushed around a bit in crosswinds and slowed/turned into headwinds.
Pro (173)--This disc shares the same strengths and weaknesses of the Echo Star for the most part. It is the most affected by the wind--longest in a tailwind, turned the hardest by a headwind, and most affected by crosswinds. In calm conditions it is right there with the Echo Star.
First Run Star (175)--I found this disc in my collection. Someone fished it out of a lake after a long time--it looked awful, but cleaned up pretty well. This disc is a little broken in, fairly flat, and fairly stiff. This disc is great. All around it is probably my favorite. It flips up from a little hyzer predictably, holding its line upwind and downwind. Finishes consistently far. It is my favorite for FH and is also the best out of the Star/Pro for crosswinds. It does not get slowed by headwinds like the domier versions.
Champion with small dome (174)--This disc flies a lot like a slower/shorter version of the FR Star. Before I found the FR Star I was really digging this disc, but now it seems to be outshined. This disc is good at everything, but best at nothing. Out of all my Destroyers it is consistently the shortest. It is very easy to shape lines with but is a bit understable at full power.
Champion with big dome (175)--This disc is not as domey as the Echo Stars, but it is still pretty busty. It is also quite stiff. It is stable at high speeds and is my best disc in the wind. It still flips a bit in a headwind, but it is predictable. In adverse wind conditions I seem to be able to force this disc farther than my others. It has good glide despite its stability, and when I get it turned over into a full flight it goes just about as far as any of the others. Out of all of these, this one has the most sure spot in my bag.
So far I'm thinking I like the FR Star, broken in Echo Star, and domey Champ for my bag. The Pro is good, but I'd rather go for the durability of the Echo Star. I still want to try a dx for throwing over water/trouble and a stiff, flatter current production star to see if it flies like my FR. I like all of these discs and overall I'm pretty happy with the Destroyer in my bag over the other wide rimmed drivers.