I believe the "Timm-verse" is Earth-12 (more or less).
Earth-4 (Pax Americana)
Earth-5 (Thunderworld)
Earth-6 (Stan Lee's earth)
Earth-8 (DC's "Marvel" earth)
Earth-10 (Mastermen)
Earth-11 (Good with some chaos)
Earth-16 (The Just)
Earth-17 (It's on the good side too)
Earth-20 (Society of Super-Heroes)
Earth-21 (Close to Bizarro earth)
Earth-34 (Nice green color)
Earth-36 (Nice globe lines)
Earth-40 (At war with Earth-20)
Earth-48 (Nice triangle)
I believe the "Timm-verse" is Earth-12 (more or less).
I chose Earth-48 because it's described as a nice triangle. I like triangles and nice things.
If it's a world of Pyramid Heads, I'm screwed!
I chose Earth 20 on the poll but Pre-Crisis Earth two would be my choice.
So far, most voters want to live on the pulp earth, interesting ...
Earth 16 for me, sounds like this earth but with none of the problems...sounds good to me.
Pre-52/Flashpoint Earth Prime