Ronnie has better taper in the following poses.
- front relaxed
Yes.
- back relaxed
No. They are about the same. In the 1998 olympia Ronnie definitley had better taper in the back relaxed round, but not in 2003.
- front double biceps
Debatable. I thing they are about the same.. Regardless, Dorian has better abs, so it evens out.
- front lat spread
Definitely not! Dorian's taper was much better than Ronnie's in the front lat spread. Dorian's lats just pop out, whereas Ronnie's are deflated in comparison.
- rear double biceps
No.
- rear lat spread
Maybe, but I think it's very close.
Dorian has better taper in the following poses.
- ab-and-thigh
Yes.
gee, I wonder who has better overall taper. 
Dorian.

Hey, NeoIndian, are you sure that Ronnie has better taper than Dorian in the front lat spread?

Even if the back lat spread, I'd say it's a close tie.
SUCKMYMUSCLE