I don't understand people that don't want to ride tires that make their ride comfortable.
I'm riding 27 1 1/4 on everything that I can fit 'em on. I just got a set of 27 1 3/8 of Loose Screws' Sand Canyon tires. I have one of those on the back wheel of my Trek 620.
In all honesty, going from 1 1/8 to 1 1/4- great and wonderful difference. Going from 1 1/4 to 1 3/8 is not quite as noticeable. Then again, I didn't do the front tire.