I'm going to be upgrading from 17's to either 18's or 19's: any recommendations?

19"s will cost you more, weigh more (thus reducing performance), require more expensive (due to the lower profile) tires, provide a harsher ride, and increase the likelihood of bent rims. What's the upside of 19"s? More bling. That's about it.

Your choice, but I'd suggest the 18"s.

I went with the 18s. The ride of the 19s is too harsh.

I went with 18's as well and I'm very happy with them. I wouldn't go with the 19's.

Gee, it seems there's a consensus. Thanks for the feedback. I think I'll go huntin' for some 18's.