At 6' and 2-fiddy ish you should be able to wear about any brand . At one point in my life i was over 3 bills (at 5'9 ) - so i had a big drawer full of new bib shorts i had bought mail order that didnt work out -- finally settled on Louis Garneau in 3x. They fit and the fabric has a nice feel to it.
As i lost weight , i just started wearing Performance's house brand stuff.