The Angel List controversy I am sanguine about. I don't see two sides to the argument. There are many ways to invest. The Angel List is just one of them. Efforts like The Angel List have surely democratized the investment climate for the early stage startups. But there are old school holdouts with proven track records who think the process at The Angel List is too diluted. You can't really find nuggets of gold there.
I have said before that I don't expect an iconic company like Google, Facebook to emerge out of Y Combinator. But Y Combinator has been a great entrance to the scene. The majority of startups are not going to go IPO. And Y Combinator works great for such middling efforts.