As to clothes, one thing I've noticed going to a lot of cons is the male guests are often dressed very casually.. and I don't mean neat casually. The most worn out jeans possible with holes, ancient t-shirt etc.. not shaved for a few days. Not sure what that's about.
I noticed that too. The female guests are well dressed, but the male are not.
As for Robert Beltran- I think he lookes very good now (although I prefer him with dyed and short hair).