It's amazing how some of you never get tired of all this my boy-vs.-your boy talk. Try to keep in mind that it's just a game. Chill.
I normally stay out of these inane "discussions," but I thought I'd expand on this post:
Yes. What these people don't realize is that the ATP ranking points are not permanent but limited to a 12-month period, which itself is designed to end with the year-end championship. Your analogy in this case is very apt.
That said, you guys are missing the big picture here. I say that because the ATP ranking system, like all human concoctions, is not some infallible, inerrant product of divine providence that's set in stone. It's an arbitrary system that's bound to be changed and modified, as it has been over the years, and thus open to criticism and scrutiny. If we were to accept the ATP rankings at face value, we'd have to grant that Connors was indeed the top player in 1977, when many if not most serious fans would argue that Borg or Vilas better deserved the title. Or that had he won the YEC in '98 Rios should've claimed the top spot ahead of Sampras, although he had made only one major final (at the AO) and advanced past the 4th-round just once more at the other majors (RG). And so on. The official ranking system should serve only as a reference which you could use to form your own judgment, nothing more. It doesn't hold any more value than any other ranking system that one may devise, as long as the alternate system is reasonable and well argued.
And that brings us to an even bigger picture. Importance, again like all things human, is an arbitrary concept. It's an illusion that we've come to accept in order to make our life easier. It's impossible for us to do and deal with everything, so we have to somehow rank and prioritize it based on our own needs and wants. It's an important (yes, the word usage is intentional) survival mechanism, but still arbitrary.
This place (and others) would be a whole lot better off if more people understood that last part. Some people think the Federer-Nadal H2H is important, others don't. And some people think failing to win one of the four majors is important, while others don't. Ditto with the calendar-year Grand Slam. All these opinions are arbitrary and subjective, and reasonable people can and do disagree. The thing that matters is whether they're based on sound logical and empirical grounds. So if you want to argue that the Fed-Nadal H2H matters in your own ranking, judgment or whatever, you have to say more than that it's lopsided in Rafa's favor, as other all-time greats faced a few competitors who had their number. And if you want to argue that Laver's CYGS isn't that important, you can't just say that the competition back then wasn't as tough as today's because the population was smaller, as that's a reductive fallacy that fails to account for other variables like number of other sports, specialization of professions and disciplines, political climate, etc. And so on.
The best we can say about Sampras, Federer, Borg, Laver and other all-time tennis greats is that they were the best of their era. Comparing eras is not as simple as a few arbitrary numbers that you choose to accept at face value. But I know this won't stop most of you guys. Do as you wish.