Since (as far as I know) there are no official names, I just thought I'd share mine and maybe hear some others'.
Starting at 1 o'clock, going clockwise:
1. Ambush Room
2. Puppy Room
3. Jump Rope Room
4. Fire Room
5. Wheel Room (or alternatively, Boring Room)
6. Totem Room (formerly Spike Room)
7. The Zoo
8. Oiler Room
Thanks for the names. While we're at it, which rooms do you skip? I haven't done it in a while, but the Puppy Room seems harder than the others, so I always skip that one. (Right, I am a wimp.)