I thought about the niches and enkeis too. It's all personal preference at that point. Tsw are 18.6lb each at 18x8. http://www.tsw.com/alloy_wheels_nurburgring.php
I didn't love the niches in person. A guy had them on a forester at the shop I got mine from.
Also the enkeis are cast/ spun? I dunno. They have some weird technique on their website. http://www.enkei.com/raijin.shtml I didn't see weight.
Tsw is rotary forged. Maybe that's the same damn thing different name?
Like I said. Personal preference in the end IMO.