I am comparing the defense, coaching, and special teams mostly. There is no comparison. Aikman had it waaaaaay better then both Romo and Dak.
And if we are getting picky, both the Oline and the RB were better with Aikman. I also take Harper and Irvin over Gallup and Cooper. And certainly Novacek blew away Jarwin.
Not sure what you can even remotely dispute with any of this.
Aikman was great, but he had nearly the best team in history around him. Which made him look better than was reality.
Your actually really close in your assessment and comparison,, but I would give Gallup a bump up on Harper.
Harper was the result of being an exploited skill set, meaning that he was in the right situation at the right time, I would grade Gallups value higher there.
Harpers entire career was transcended by a few nice catches at critical times, in critical games,, I seem to remember the long sideline pass that got us a critical
3rd and long maybe in the championship game vs the 49ers, it was a long time ago, so I may be wrong on the specific game, but I am firm in my memory of that catch.
It made Harper,, is what it is, but I take Gallup and his versatile skill set any day over a one trick pony in Harper.
I believe he went to Tampa after free agency scavenged us,, and faded away.
Anyway, sorry for the long rant about Harper... lol