I have used Castelli for a few seasons. The Kiss3 is a very nice chamois and I didn't find them running small for their size, YMMV. They are newer in style.

I also have a couple pairs of Twin6. If you're tall, these are long, like Lemond battling Hinault on Alpe d'Huez long. But I find them to be comfortable. They are more like an old style traditional bib with 8 panels.

I have a pair of Vermarc Lotto-Belisol team bibs which are, like most pro kit, small.