GCC is still basically better overall but it's basically chaotic.

LLVM seems to have better defaults for branch-y compiler code, but GCC has a lot of tricks up its sleeve that LLVM hasn't got.

FWIW though I think GCC is really playing with fire when it comes to it's future - the mailing list approach to development deters new contributors, the testing infrastructure is quite arcane, etc.

GCC should be an aspirational tool that people want to contribute to but aside from a few core contributors it feels like its basically on life support in some regards. And I say that as someone who actively tries to use it.

Its core competencies are pretty good but it's (mostly stallman, to be blunt) legacy has made it very brittle at its extremities e.g. LTO explodes on me way too often.