As a new MMO/PVPer who only PUG's, #6 would be absolutely top on my wish-list. I think it would raise the overall PVP intelligence level of the population to be able to listen to some of the vet's during matches. I'm sure there would be a lot of trash talk, but I'd be willing to take the bad with the good.
At first I wasn't sure about #1, but I'm starting to see the value in it. It took me a long time to even work up the nerve to try PVP and now I'm re-rolled on a PVP server. It's going to take an even longer time for me to try rated, but if that's all there is, then there's no choice (increase rated pool). The only thing I would have added to that list is a solo queue. I would think the voice chat could bridge some of the skill gap in a rated PUG (not that I would know).
Overall, I think a lot of the ideas on this list would increase the number of people in the PVP pool and would probably get someone like me to try rated a lot earlier.