Drag Radials vs Slicks

Unless you plan to run it in a street tire class, I'd buy slicks since you said you will have two sets of rims. I consider drag radials to be an all purpose tire for when you only have one set of rims; they will somewhat meet both needs, but don't really dominate in either category.

I used to love driving to the track on my BFG TA radials, pull out my breaker bar with short extension and socket, jack and jack stands, swap on my slicks and laugh at the guys that trailered in slower cars.