Big up for the Jetta from me. I've had an 07 TDI S from new and can't fault it. Its done nearly 87k now and just seems to get quicker and more economical (upto 60mpg at 70mph). Huge boot, comfy, decent toys (automatic lights, wipers, 4xew, air con – even on the base model), looks good imo and hasn't put a foot wrong. Its not the kind of car teenage boys have a poster of on their bedroom wall, but for an everyday car it is superb.
I'm sure Civics are very nice too.