Personally I canŽt stand Ernie Balls, too loose, break easily, donŽt hold long...etc.
Rotosound and DŽaddario I can use, the are very decent strings I would not complain about using them.
DRs are long favorites, Tight Fit and Pure Blues, donßt like the Hibeam so much. I wanne try their coated strings sometime, as I hear good things about them (and Elixirs, while lasting long, have a similar feel to Ernie Balls to me).
DRs feel great, sound great and are with the roundwound...well you get more put into that little package of string.
Newtones are my new favorite though, love those things. Nickel-roundwound with increased core strength makes me so happy. Feel great last long....only custom orders take a shiteload of time. If I donŽt have newtones around and need strings I still go to DR though.