I think that Ratchet and Clank are pretty good. Although, I dont think that the third one deserved 10/10 on Gameinformer. Personally, I like Ratchet and Clank more then Jak and Daxter, but in the end you really cant compare the 2 series because thier so different. I mean, the first Jak and Daxter is pretty similar to Ratchet and Clank, but the Jak games are pretty different. Of course, I havent played them for a long time, so I could be wrong.
Oh, and I probably should not be getting into this argument, but, in my opinion, 2D Sonic games are better then Ratchet and Clank games. I've only played Sonic The Hedgehog 2 for Genisis, though, so maybe they got worse later on.