Assuming you think Akram had better bowling support, you also agree that Ambrose's average needs to adjusted downwards(19,18,17 or even 15) because of worse bowling support ? Should work both ways isn't it ?1988-2000 Akram better
Ambrose 98 tests, 179 innings, 405 wickets
20.99 avg, 2.3 ER, 54.5 SR
22 x 5, 3 x 10
Akram 98 tests, 171 innings, 407 wickets
22.98 avg, 2.59 ER, 53.1 SR
Still Akram more impressive.
2 wickets more in 8 innings less, despite bigger competition
More 10 wickets and five wicket hauls
Ambrose better in avg and ER, due to various reasons discussed already.
And if there is any ATG bowler to be blamed for low WPM its Ambrose.
I also see that you have removed 6 tests from Akram in which he took only 7 wickets. Kudos for that.
Another factor which isn't discussed so far is Ambrose not having a world class spinner at the other end ? Whom did he have for support ? Hooper, Harper, Perry ? With Saqlain or Mushy at the other end, it is easier for the fast bowlers to get a breather. Makes life easy as far as spell management goes. Can't emphasize this more.
I would admit though, that I wouldn't have brought it up if not for your insistence in only bringing all the factors that disadvantaged Akram but none which disadvantaged Ambrose.