Having been at WWDC and played with it for a few weeks, I'm not sure I'd call LLVM a hands-down winner. While there's a lot of win in terms of code readibility

Having been at WWDC and played with it for a few weeks, I'm not sure I'd call LLVM a hands-down winner. While there's a lot of win in terms of code readibility and the great interfaces it exposes if you're going to write an IDE that understands the code, I'm not convinced it's there yet in terms of binary performance. My apps run around 5%-15% slower, on average, than the GCC -march= setting.