I value P1 less than most, and view VsL, and even GB/FB, as roughly as important as P1. But in any case:
A pitcher with all 70s in control, VsL, VsR, P1, P2, and GB/FB is a legitimate but below average major leaguer, should probably not make your playoff roster.
A pitcher with all 75s in control, VsL, VsR, P1, P2, and GB/FB is a slightly above average major leaguer.
A pitcher with all 80s in control, VsL, VsR, P1, P2, and GB/FB is a very solid pitcher, can pitch important innings.
A pitcher with all 85s in control, VsL, VsR, P1, P2, and GB/FB is a perennial all-star.
You have to take a weighted average to get a feel for the whole pitcher; 60 is a bad rating, but a guy with 95 control can be a very good pitcher even with VsL, VsR in the low 60s.