Everyone has a different riding style. I have a double and most of the time in the small ring. I spin like crazy going up hill cause I can't stand to be in a big gear and my thighs on fire. I don't have much of a pain threshold! But there is a lady I ride with that's similar to me in weight and size and she is always in her big gear. We did a 45 mile organized ride and she is just mashing up the hills in her big gear. I think she's crazy but as I said everyone has a different riding style.
"He's really having to dig deeply into the suitcase of courage" Phil Liggett