I'm a long time VPI user, but I'd go with the PF based on what I've seen/heard.
I'll let others comment on technical superiority on which is "better?"
To my ears, both can be satisfying limited by choice of phonostage, which you'll want to address also.
Whichever you decide on, real time speed montoring/correction is paramount at the level you're seeking. Phoenix(Sota) controller highly suggested on the VPI. I don't think it can be used on the PF?
VPI is a contentious brand. On paper-wrong on just about everything. What I hear on a properly setup however, is just a "good" as the anything else in price point.
If you go VPI-gimbal arm over the unipivot.
On a personal note- The PF has a more "traditional look" which I find appealing.