Mudder, I vote that either bike would work well. The big question is, what tires to use? We've been riding the course with 23 mm clinchers or tubbies. I hear some guys saying they'll use 25 mm's. I wouldn't recommend 'cross tires: the other 20 miles of the course will be quite painful on 'cross tires.
Jazzy , Volunteer Park rocks, so I don't blame you. This year you'll see a lot of overlap between eastern and western WA races. We're pretty stoked about having more racing over here this year, even if it means we'll miss some of the west siders. I hope you come over for senior state champs!
MJS