If they would bring F1 back to the US, I would like to see it at Laguna Seca. It reminds me of my favorite race track, A-1 ring, now that was always a good race. 8-)
I would love to see them try to scream through the corkscrew, that would be exciting.
There seems to be a growing number of 'flat' tracks that have no character anymore.

I went to the first GP at Indy in 2000, and honestly, it was the worst racing event I've ever been to.
Everything cost more, compared to the Indycar, and Nascar race that year, even though it was the same crap.
The air was too snobby, you couldn't get close to anything remotely cool, unless you were a team member, or insanely rich.
At the Indy500 and Brickyard 400, I got cold pit passes for $10 and got to meet several drivers, and see the garage up close. Very welcoming atmosphere.