Led Zep is awesome and, frankly, for all that's it's been played until our ears go into fatigue from the first note, "Stairway" is a brilliantly composed (and recorded) song. A gem on an album of gems (though for whatever reason I'm not as fond of "Misty Mountain Hop" or "Four Sticks" as I am of the other tracks).
In terms of Page, I think he's the sloppiest guitar hero ever :) but I don't care about technical precision as much as I care about performance and Page is/was a great performer. And a great songwriter, with a great ear, and that boosted what I think was his best unsung skill: that of producer. I can listen to the early albums all day and think, "How the hell did he think to do that in 1971?", and then, "Technically, how the hell did he do that in 1971?" Led Zep albums would never have been Led Zep albums without Page at the helm as producer. And, frankly, for those of us who were there :), the incredible cohesion and vibe of Zep's official "live" output owes a great deal to Page's production talents .... :)