It's always hard to guess what would have happened if something else hadn't happen. Kelly may have been one of the top pop girls and everything in her career would have been dictated by RCA and Kelly would have been a puppet. I honestly don't think this would have happened because Kelly has her own mind and sooner or later she would have rebelled against her label (which she also did with Breakaway when it was her idea to do more pop rock oriented sound, add heavy guitars to SUBG and include BOY etc...). Or My December might have been a hit (although it wouldn't have matched Breakaway success) and slowly Kelly would have faded with minimum album sales and zero succes with singles with the following albums (kinda what happened to Avril, Xtine...).
In my opinion, My December is Kelly's best album or at least Kelly best album since Breakaway. Neither AIEW nor Stronger came close. (Wrapped In Red is great but it's a Xmas album, so it's kinda pointless to compare it to MD.) Although MD era was Kelly's least successful one, she managed to recover, AIEW sold nearly 1M and had two big hits (MLWSWY and AG), Stronger sold 1m+, won a Grammy, had another 3 Grammy noms, had two big hits (Stronger, MKIA), her Greatest Hits album did very well and gave us one of her best songs ever (CMB) and currently she is sleighing with Wrapped In Red.
I think she is much happied after My December than she was before it and I think that she is much more respected than she would have been if she hadn't released it.
