Admittedly, I find it hard to really get into the Nickelodeon show, mainly because it suffers from the same (not exact same, but you get the idea) problem that the new seasons of ARTHUR do: rather poor animation.
The animation is just... is that really the best they can do? It kind of reminds me of that video for Dire Straits' "Money for Nothin'", it looks really, really cheap. I also find it a little odd that they brought back Rob Paulsen, but rather than reprise Raphael, he's voicing Donatello instead.