Thanks for the replies. One vote for D-sonic and one for Wyred. Perhaps they are more similar than different.
Maybe speaker selection has alot to do with which amp will ultimately sound better, or maybe the rest of the system breaks the tie. I noticed that the D-Sonic (600) has a much lower input impedance than the Wyred, so maybe that comes into play as well.
Anyway, it looks like most AC'ers are going for the Crown XLS or doing the DIY n-core thing. Those seem to be more popular.
Cheers!