[Screaming_Emu]

I would say in the long term it doesn't matter if you do it right. If you train in one, make sure you get exposure to the other.

I would say there is probably a very very slight advantage for doing your PPL stuff out of an uncontrolled field and everything else out of towered. At a non towered you can really operate at a pace that suits you without feeling hurried by the people in the tower. Slightly less stressful environment for the student, but it all pretty much evens out later on.