The Moonlit Knight
Banned
Not what I meant, but since you ask I would rate them about the same. Unlike you I didn't think King was the finished article at 19, one of the reasons he was played in central midfield as well. Similarly to someone else in this thread I thought the time he spent next to Naybet really helped him, of course that might have happened even if Naybet hadn't been there, but that was when (for me) he matured into a top class centre back.
Caulker has a (long) way to go, and the odds are against him getting to a similar level as far from all talented youngsters manage to reach their potential. He does have all the raw ingredients though.
I never said he was the finished article. I thought King was brilliant, but not the finished article. I do think he went backwards (and now we've read about his injuries, understandble!) for a couple of seasons after his stunning first couple of seasons. Just to put this in perspective there was a reason why we Ledley was used in the chant about Campbell from 2001. King in 2001 was simply superb. IMO King's finest season in a Spurs shirt was 01/02 and I will always wonder how he would have progressed had he not had those injury issues.