I find Tim Drake to be an annoying scold in Knightfall.
As for Jean-Paul, I don’t like the character, but it’s not for the reasons I’m supposed to dislike the character. In fact, I feel that he doesn’t go far enough. Perhaps that’s why I find Tim Drake to be so irritating in this story: Jean-Paul doesn’t really feel any more violent than Bruce Wayne was when Tim first inserted himself into the Dark Knight’s life. Maybe if Tim was more “Batman needs a Robin to soften his edge” and less “Batman needs a Robin to nag him endlessly,” it wouldn’t bother me so much, but I just laugh when Tim acts as though Bruce would NEVER go this dark (especially considering how many early post-Crisis stories went darker!).
Speaking of Jean-Paul’s disappointing tameness, the same is true of his revamped appearance. His new costume in Batman #500 is certainly excessive compared to the classic one, but it’s not quite Rob Liefeld levels of embarrassing, and that may be to its detriment. Like, where’s the single glowing yellow eye? I’m not sure if it’s even as silly as Todd McFarlane’s design for Spawn. (Well, maybe the later red variant of the costume gets there.)