I'm planning to buy one of them.. Which one would you suggest and why?

audi a3 is the best in its class. check whatcar.
better interiors, better safety, better engine, better reliability.
bmw 1 series is for tossers who cant afford a 3 series.

I would get the Audi A3.

It looks better inside and out.
It has a smoother and quiter ride.
It is more practical and has more trunk space.

Both are expensive to fix and insure and maintain.

You can get the Audi with AWD so it is safer too.