Alright, tell you what. I'll draw you a compromise. Originally I wanted to write an epic diatrabe about how Loeb is great and such, but then I thought about his best works: Spider-Man Blue, Long Halloween, Dark Victory...every fucking one of them had Tim Sale involved, but that doesn't stop him from having some epic work. The Long Halloween is, in my opinion, not just one of the greatest Batman stories ever told, but one of the top comic book stories ever. The pair of Sale and Loeb is legendary, the likes of Claremont and Byrne or Lee and Ditko.
Other than that, I am trying so hard to refute you, but I am having the most horrendous bitch of a time trying to think of a classic story Loeb has done without Sale. Hulk Grey? Damn it...Daredevil Yellow? Fuck! Ummm....Wolverine? Well, that doesn't have Sale, but it's utter ass. Well, I personally quite loved his Superman/Batman run.