I believe your argument has some serious flaws. I will break my arguments down.
1. The point when I or other people raise by asking someone to choose between A and B is not by ignoring the fact that both A and B are important/valued. Of course every single positive tiny dot on a player's resume will be valued. The obvious question such hypotheticals raise is
"which one is more important". May be like you have to choose your wife from two options available
2. I believe streaks are not important. They are cherished, valued, liked. It doesn't add to greatness, "necessarily". What it shows is the player had a continued domination for some period X. If X is all it matters then that player is the best. If X+Y is the period you care about then overall performances of X+Y matters more. Not only more, it renders the streaks to nothing. It becomes double counting.
How does it matter if it comes one after the other or at alternate times? How is one better than other?
For eg, Roger played 23 consecutive SF from 2004-2010. Now when I have to asses Roger's prime years from say 2003 to 2010, the fact that Roger was a part of 26 SF overall during that period trumps his 23 consecutive ones. Why is 26 not more important than 23? I believe it is.
Why is 26 not a better indicator of consistency and domination than 23? Is "continued" domination greater than "overall" domination?
Or think about this example which I have talked about a couple of times before on this board. Players A and B play for 500 weeks. A becomes no.1 for 200 consecutive weeks. B becomes no.1 for the remaining 300 weeks.
- The question here to ask is whose record is better? I think we both agree B dominated tennis better and hence B wins.
- Or another way to ask the same question is, does A's "consecutive" domination makes his record "better" than B's? I dont think so. I hope you dont think so too.
- Now ask does the fact that A having higher consecutive run than B makes A's record "any" closer to B's? No is my answer.
3. As I said before, players want to win everything. Every point even. Pros play to win. But somethings doesnt matter in the grands scheme of things. Like Rafa wants to win every 250s and 500s he enters. Does it add to his greatness? Not much.
4. Difficulty "solely" is not the criterion. A golden set is the most difficult task in tennis. Everybody would like to have won one. Does it matter? Negligible effect on greatness. In today's times if a player wins a golden set it's "almost" certain the other guy played too poorly.
5. A record is a record. I didn't argue otherwise. Only that some records dont matter as much as others. h2h is itself ranks pretty low among others. A "streak" in that h2h is nothing.
6. It depends on what you consider Novak's prime. For me it's from 2008. The h2h is 17-17.
Even the sets won are the same!. But I give advantage to Nole here because there are more matches on clay, "relatively" speaking. The Slam h2h is 6-3 in favour of Rafa. 4 on hard, 4 on clay, 4 on grass. Pretty even there.
2011 Nole should be peak. Peak for peak, from 2011-2013 Rafa-Nole is 6-10. 8 on hard, 7 on clay and 1 on grass. So real advantage Nole there. In Slams they are: 3-3. Nole leads on hard and grass, Rafa leads on grass.
2011 Nole was absolute peak Nole. I wouldn't read too much from that 7-0. 2013 Rafa vs 2011 Nole should be a great contest. I believe Nole will take AO and Rafa UO. It can go either way in FO and WC.
All in all I believe Nole has the edge, but it increasingly looks like Nole in Bo3s and Rafa in Bo5s. My point is all that trumps 7-0 streak which is just a stretch. When h2h is analyzed, which itself is lower on the rung of accomplishments, 7-0 is not more relevant than all those I mentioned above. In fact it is irrelevant. Rafa also has 5 match winning streaks against Roger, Novak and Andy individually. Doesn't matter really.
7. Streaks tell you things. Of course it has meaning. Does it have a value over overall accomplishments? I believe no.
8. The only streak I believe has a value and adds to greatness is CYGS. Only because its historically seen as an accomplishment. It was called the Grand Slam. Even then I do think it's slightly overplayed. That also includes Rafa's 10 straight years winning a Major. Is it easy? No. Does it tell you something? Yes. Does it adds to Rafa's greatness over Pete and Roger who made it only up to 8 years? No is my opinion. Of course Roger made the most out of his 8 years. In the grand scheme of things they all even out.