like james, excitement sometimes causes me to over-bend on thinner gauge strings.
anyway, it depends on the guitar, but 90% of the time I use Feline's 11-50 set. sometimes i use d'addario 11-48, or very occasionally 10s. actually i prefer the lighter low-E, but i like the feel of Jonathan's strings, and the cover art puts me in a good mood. all guitars in standard tuning.
actually i'm thinking of changing to 10s in all my guitars... i liked to expend extra energy pummelling these fatter strings in punk style, i thought thicker strings might snap less in the old days ;) but these days it can become tiring to wrestle with this thick gauge. also i have lots of spare sets 10s from the BKPs :)