Jimmy Page used Ernie Ball Super Slinkys, which are 9-42's.
I'd have to disagree with him being the greatest drummer though, I'm kind of biased towards Mike Portnoy and Dream Theater.
Was almost tempted to get a Les Paul like his but then I found DT and ordered an Ernie Ball Music Man John Petrucci 7 string about a month ago (still waiting) haha.
Loved the DvD they put out though, Page has an awesome feeling to his solo's even though technically he's not the best.
I hope you are not implying that shredders are techincally the best. Ha metal shredder guitarists are so bad. They are so unconfident about playing good sounding notes that they just play anything as fast as they can. Ernest Hemingway said say what you will with the least words as possible. It will be the most powerful. The solos of Duane Allman and Page for instance are superior in that sense. Shredders play with no feeling. If you anyone want to hear a real guitarist, listen to folk guitarist leo kottke. He blows all metal shredders, and keller williams for that matter, out of the water. Listen to Jack Fig by Leo Kottke and you won't listen to metal again. All one guitar - no looper, I've seen him play it live, and he burns calories. And as for technically the best, after Kottke comes all the jazz improvasational guitairsts, as I'm sure you know that is the most difficult guitar in the world. Then we have virtuoso classical guitarists that play nylon strings. So really, shredders suck.
Whats wrong with being skilled at an instrument? All of the sudden theres no feel? Huh? Theres a difference between death metal "shredders" that play fast just to play vast (Alexi Laiho is that one exception though), and true virtuoso's like Vai, Petrucci, Malmsteen, Gilbert, Becker etc.
Jason Becker's work is some of the best guitar out there in my opinion, theres alot of fast sweep picking type stuff, but theres tons of feeling.
And if you want to talk technical ability, yes I do think "shredders" are the best. Because I'll put it this way, Petrucci can play what Page does, but I honestly think Page couldn't do what Petrucci does. (and I'm Zeppelin fan btw) But I will check out these Jazz guys, sounds cool. But I can say I will never stop listening to metal, because it kicks a$$. Though, really, its pointless argueing whose favorite guitarist is better, because its the internet, and it doesn't matter, because no matter what you say, it isn't going to change how good a guitarist is.