Anyone have to replace one of their tires? And if so what did you do--buy a single of the same brand (Contact2 in my case) or a pair of another brand (which one)?
Oh my. Never replace one tire with a different brand than the other three. Some people believe it's OK to have different brands per axle (i.e. contis up front, bridgestone rear), but it's horrible practice and will not yield maximum performance out of your GTI.
Also, depending on how worn your tires are, I would replace the tire on the opposite side, too. So, if it's your front left, replace both fronts.
It's just not worth it to cheap out on tires.