When I first started playing, I was a 10's user just because the shop told me they were "regular / standard" gauge. Shortly after that, I switched to 12's because I had read that Dick Dale played heavy strings (way heavier than 12's anyways) and I was in a few surf instrumental bands. As I got older, my style had changed and I've been using 11's for at least 10 years now and I love them (especially on my Jazzmaster). I find that they're the most versatile for me and the intonation is decent enough because I'm the kind of player that really likes to dig into the fretboard. For acoustics, I'm a 12's (light) kinda guy. I haven't really experimented with different gauges because the 12's feel like the perfect gauge for strumming and fingerstyle.