I really like how danners have made a comeback. Seems like not too many people where using them 6 months ago.
I've used both the Danner 250 and the ViaAqua 1300 (stlll in my system because I haven't had time to switch back to my Danner) With the danner in my system, I was getting temps about 1-2 degrees less then with the ViaAqua. The danner was submegered in about twice the amount of water, so this could be a reason why. I also found the Via to be quiter then the Danner. As far as build construction goes, noods go to the Danner. It is built like a tank.