I really shy away from anythign less then 32. I'm 225 right now. My main rider is a Touring bike with 36 front and rear. No broken spokes but the rear rim starts cracking around the spokes. I think it was overtightened (Bought the bike used). Re laced both with CR18 and DT spokes.
My Fuji Touring bike is factory 48 14gage spoke rear wheel.
It is the most true wheel on any of my bikes including the ones I just built. I bought the bike at a yard sale for $8 and this bike definitely has some miles on it. Maintained but if had a full set of racks for an extend period of time.