More 1v1s is a good thing. Too many players can't fight their way out of a paper bag and people need some motivation to learn a DG besides Regulus.
I agree for the most part. So long as you are stuck playing nothing but 1v1's, I enjoy mixing things up from time to time.
I do disagree re: some of your thoughts on 1v1's. I think it would be good for there to be at least some sort of delay, even if its not quite 120 seconds, to wait for more players to join. All said and done, if there are 2 on light (and I'm on light and have been waiting 4 min) and 1 on dark, I'd generally rather wait a little longer for a chance at a 2v2 than have it instantly launch. But, to each his own on this one.
I'm very curious to see how the population with pantheon goes. I know alot of people were simply wanting AI stomps for exp. Wondering if those will continue to play pantheon or play custom games against ai.