Rosewall was 29 when he first played Laver, in the most important matches: the pro slams Ken leads 6-4, open era slams when Ken was 33 they are 1-1. In two WCT finals, Ken who was 36-37 leads 2-0. As Bud Collins said, Laver had the better overall H-H but in the most important matches Rosewall was Laver's equal, at least. Again, I am not saying that Rosewall was better than Laver, but his equal, overall. Like it or not, Rosewall was #1 in 1960,61,62,63,64 and in several experts #1 or joint #1 1n 1970. Ken was ranked higher than Laver in: 1970, 71,72,73, and 75 which was the last year both were ranked YE in the top ten. Ken, past 40 was ranked #6, Laver was at #10. Rosewall was first ranked in the top 10 in 1952.Laver was the best player in the world clearly from probably 1964-1970. Rosewall was just the best clearly from 1962-1963.
Your breakdown of the h2h is a bit superficial. For starters there are plenty of other important tournaments beyond the ones that you're counting. The pro majors didn't have the same status in that era as the modern grand slams do in todays. Rosewall also played Laver 30+ times in 1963 when Laver was still adjusting to the tour (scoring 2 major wins over him) - more than any other year. That pads the h2h on his side.
Then you have to consider the opinions of the people that saw and played them both. Next to no one ranks Rosewall higher than Laver. Kramer, Vines, Sedgman all rank Laver higher. Laver himself only ranks Rosewall 6th from pre open era players.