I like both, but as of late, on the unfinished Strat type body I picked up from "W", I modded the bouts to be recessed an additional 0.5-1.0", which helps me a lot for upper register access. Charvel does this on some of their models too. It's a subtle change that is not obvious to see if not using a pickguard, but still keeps the vintagey look.
The Soloist bodies seem sleeker and also provide excellent upper fret access.
I think ultimately, both are great, but will be dependent on the look your going for.