I would say roughly the same. The SVT suspension isn't dropping your car enough to make much of a difference. What are you looking to do with your wheels, auto-x, show, daily driver?
With a lower number offset you will have more 'dish' which some like and some don't. Mr. Blue's car has what I believe are 15x7 in 30mm offset
http://www.omnilith.net/rob/web/photos/
But he has coilover suspension so there's a little more adjustability with how they fit on the inside. Fit was also aided by lightly rolled fenders and a shorter tire I my memory serves me correctly.
On the other side of the wheel spectrum you can find an EAP wheel where there is basically no 'dish'
http://i213.photobucket.com/albums/c...ay40/wheel.jpg
One wouldn't really be considered better than another, it's basically preference and how hard you are going to be pushing your car. If you're wanting to put it under a lot of load with fast cornering and whatnot with a soft suspension then I'd suggest something with a little bit higher offset number (hence the 40-49 range above). The lower the offset number the farther out the edge of the wheel will be.