Well i used to use 10's and that was fine, then i moved down to 9's (to do better bends

) and the 9's are fine aswell.
But like others have said 11's should be the maximum, for standard tuning.
If you do lots of bends and legato then the lighter gauges are better imo, if you just do chords and very little to no bends then go for the heavier ones.
