I have to disagree about the seven2 helio. I think they are awesome.
Here is the deal a few years ago they had absolutely horrid customer service issues. Especially on the high end stuff. The had some issues I think primarily related to the paddle blades delaminating. The left a ton of people hanging. Don worked at a shop and had to deal with that mess continually, I cant blame him for his response.
Personally in 6 years I have had 3. My first one lasted about a week. I returned it because the blade delaminated I returned it. My third one lasted 4 1/2 hard seasons using it for both park and play in cement parks (which is really hard on paddles) river running, and the occasional creek. In order to protect the blade I put a thin rim rubber protectant around the blade. I feel this added to the longevity of the paddle significantly.
I finally broke the blade while trying to learn an entry move into a hole (a back deck roll, as your boat bounces off the pile). While doing the move I caught the blade upstream against the rock that made the hole, it was too shallow. Its hard to explain but lets just say that the paddle was not designed to handle that kind of impact. I feel fairly certain that a 4 year old AT would have had a tough time in that situation as well. Additionally I was lucky that I broke the blade and not my shoulder.
I called Seven2 to see if the blade could be replaced. They said because of the way that the carbon fiber is used that it would not be worthwhile. They recommended that I buy a newer seven2 and then when the new helio came out I could trade up. I never traded up.
What I do like about the paddle is the how the grip works. I never really liked how the bent shafts felt in my hand. The whole airpocket thing is kinda gimmicky. Really the coolest feature is the grips. Plus it fits on a carabiner well. The weight comparison between the seven2 line and the ATs or werner is pretty insignificant as well. The seven2 looks like it should be lighter but its not.
Hope this helps,