Well, what sort of governance would you like, and how do you think the various PEPs do at accomplishing that? 
(Obviously I can make some guesses based on having read your PEP, but I don’t really know why you wrote it, and you say you’re not sure whether it’s still your most-preferred option…)
I agree that the “straw poll” thread has ended up with a lot of fiddly back-and-forth and it’d be good to have more high-level discussion (my fault maybe?). I thought some of the posts there address your question though:
- Victor
- Me
- Antoine
- Brett
- Nick
- Paul’s message here (that thread may have gotten lost a bit because it’s in “Discourse feedback” instead of “Committers” like most of the discussion)
More briefly/at a high level, the things I’m looking for are:
- Spread the load: I don’t think it’s a good idea to make a single person or small group personally responsible for the whole language. We shouldn’t ask people to make multi-year commitments if we can avoid it.
- Flexibility: The one thing we know for sure is that we won’t get everything right the first time.
- Clarity: The point of a formal governance model is that it’s the thing you fall back on when you don’t know what else to do. So, when you have a confusing situation, you really want everyone to at least be on the same page about what the governance model says, what the process is for resolving things, what authority each person actually has, etc.
Flexibility and clarity are the tricky ones. I wouldn’t say they’re necessarily in conflict – you can have clear rules for how to go about handling unexpected situations, and for how to change the rules themselves – but balancing them is a challenge.