The obvious choice for pavement is New Smyrna but like you, I've never been to Bubba so I can't compare that track with the good races I've seen at Volusia. (But this was over 10 years ago)--I'm sure it's probably different over that time period.) In your scenario, I would alternate between New Smyrna and Volusia but since you'll be in the Orlando area, it's gonna be a fairly long ride to the tracks further north. Depending on how close Bubba is to Orlando...I'd alternate between all three!