Dirk and it's not even close
Dirk revolutionized the PF position and lead a team to 10 straight 50 win/ playoff seasons. Dirk's rebounding isn't far from Bosh's because you forgot to look at the fact that Dirk plays with Kidd, Haywood, and Marion who are all above average defenders at their respective positions. Dirk is by far the better passer than Bosh and can create his shot much better than Bosh. Dirk is more clutch and can score from the inside and create double teams in the post and pass to open shooters (like Shaq/ Duncan) and he can also make perimeter plays and create for others from their like (Kobe/Wade etc). He is like a combo of a post player and inside player. Dirk is by far more efficient than Bosh and turns the ball over less, lead the NBA in efficiency two straight years before, and always shoots around 47-50%fg, 37-42%3pt, 88-92%ft.
Dirk is also a great playoff performer and is top 10 alltime in playoff scoring at 25.6ppg.
Just look at the %s this year
48%fg, 42%3pt, 91%ft
55%fg, 57%3pt, 96%ft
He is way more efficient and you don't use up as much possessions running your offense through him. He takes teams and puts them on his back and won MVP and did something only Bird did, which is average 50/40/90 %s while scoring 25 points. In elimination games alltime for his playoff career he is averaging 29ppg, 12rpg, 47%fg, 39%3pt.
Bosh isn't in Dirk's category. For some reason (maybe his quiet personality or non athletic/ non flashy game) he continues to get down graded to being compared to lesser players for reasons I don't get.
Dirk is a top tier player with Chris Paul, Kobe, LeBron and Wade.