Coach, first we are comparing apples to oranges. Different eras. Had Jack been pushed by Johnny Miller and Tom Watson for a longer period of time, maybe Jack would have pushed himself to the limit, instead of being the awesome family man he was/is.
You also say that the competition wasn't as good back then. Uhhhh....Palmer, Trevino, Watson, Zoeller, Irwin, Faldo (prior to 1986 he was a pro), Greg Norman, etc. All Hall of Famers.
Secondly, take a look at the amount of times Jack finished second (especially in Majors). He was always in contention. A few putts here and there, and Jack is untouchable.