My favourite by far and the only incarnation I collect (besides the latest one) is the Byrne/Ordway/Jurgens relaunch. Great, solid superheroics.

And George Klein was great on John Buscema on the Avengers (second only to Tom Palmer) and on Gene Colan's Daredevil. I prefered him to Sinnot, who admittedly was a great, slick inker but who tended to tame some pencillers too much.