go to a CenturionCrew.com for good info. As for the boats listed:
1. Enzo 220: this boat does not have the same hull as the Enzo 230/240 (which is a deep v hull). It has the same hull as the Falcon (flatter compared to Deep V of Avy/Enzo230/Enzo 240). This is Centurions 3 sport hull. Does all three very three well, but non are amazing.
NOTE: I would not buy an Enzo 220. If you like this hull, save yourself a lot of money and buy a Falcon. It is the exact same boat. The only reason it is called an Enzo is because of some of the bling on it.
2. Avy C4: Has one of the best surf wakes of any boat on the market. the surf wave is easy to set up and is very clean and long with a lot of push (either side). The wakeboard wake is very good, but is sensitive to weight because of the Deep V hull. You will just need to add a few extra pounds to the side that is washing out a little to fix it. This boat also has a great rough water ride.
I have a 2008 Avy and have no problems with it.