No I don't because Pancho won many pro majors and h2h tours which were even more important.
I accept that Rosewall could have won a Grand Slam, but I can't rank him as if he did. It's just something Laver has over him. Rosewall has his larger number of majors, longevity and WCT wins though.
NatF, That way you must rank Budge very, very high (surely too high) because he has won the Grand Slam while for instance Vines does not. But yet Vines was probably the greater player.