Call me crazy, but I happen to find Iris to be dull and uninspired. I have heard the little twinkling Horner sound effects till I almost throw up when I hear them. Iris is nothing more than Spitfire Grill incognito. No, not even incognito. It's just Spitfire Grill. And it doesn't seem to care.
I find Beautiful Mind to be a much more in depth and personal score. Granted, BM steals from the other BM (Bic. Man), but Horner at least juices it up a bit with added voice and woodwinds. Beautiful Mind is not an action score. It is, however, a deeply moving and INSPIRED score. Of course, that's just my opinion.