How is the wear on S-03s?

Trying to decide between the ($$) S-03s and the ($) HTRZ-IIs for new tires. Given the rave reviews I've read of the S-03s, I'm inclined to spend the extra cash, but I am curious about wear. I know max performance tires wear quickly, but I'm wondering if the S-03s are likely to last longer than the Pilot Sports I have now (which probably lasted about 15K miles).