I like the AeroBlue better, especially the icons are nicer, but I'll get used to any working theme quickly.
On the other hand, I find the overview in Prosilver better and easier for reading and isn't that the purpose of a forum?
Agree, my findings are the same, Aeroblue is better looking but Prosilver is much more clear and has a better overview.
The good thing about it is that we can choose now and set it default in your profile