Tiger did have his sophomore slump, but he says it was because he was fixing his swing, and it worked. The world rankings can’t be used to compare players too far back, because they’ve only been around since the late '80’s and the formula has changed several times.
There’s obviously no question that Tiger’s whipping everyone right now. I go back and forth between whether the contenders are as strong as they used to be. Are Els, Lehman, Singh, Duval (one-time wonder, in my book), Mickelson, Montgomery, Clarke and several others the level of Jones’, Palmer’s, and Nicklaus’ competition? It strikes me that the fields certainly are a lot deeper these days, but I think that say, the top ten players of most other eras were far better as a group than the top ten today. (Tomorrow I’ll think differently, probably.)
As with all sports, it would be great if Jones, Hogan, Snead, Nelson, Player, Palmer, Nicklaus, Faldo, Seve and Tiger could play a few rounds together at their peak, with the same equipment. My guess is Hogan and Jones would probably give Tiger more than a run for his money. (Interesting sidebar–Mickelson hit some 1950’s drivers a year or two ago. He said he could hit them just as far, but his mishits which with today’s drivers go to 10 yards off-center, to the sides of the fairways, went 30 yards off-center, beyond the deep rough.)
If Tiger keeps it up for only a few more years it’ll be hard to deny he’s the best ever. He doesn’t make it much fun to watch, though. And besides, the game isn’t meant to be easy, even for the best.