I'm going to have to agree that the Jetta is definitely a girl's car, but mostly for the fact that the demographic who's driving most of them are females. On the other hand, the Audi A4, which to me appears very similar in styling, is very much a man's vehicle. Don't really know why, but VW's just have that girly reputation among a lot of people.
Buy whatever makes you happy is the bottom line! I still drive my 1994 S-10 Blazer because it's comfortable and mostly paid for=)
dm