All I know is that I just flew on the 787 in F for the first time a couple days ago and it was pretty sweet. I had no qualms about it, despite all the hullabaloo around the reliability issues and delays. No issues on my flight, at least.

If I ever get the opportunity, I'd fly on the A350 when it's still "new". I still do have to get a ride on an A380 at some point, although my travel patterns preclude that at the moment.