The friendship seemed on like a proper on-screen friendship in Sith but never reaching the magical chemistry of Han and Luke, in Clones it was more like the mentor and his rebellious student with the student whining and moaning about this so-called friend with the odd real show of friendship, I feel maybe it should have been like Sith but in Clones with Anakin showing this friendship maybe towards the end of Clones and in the beginning of Sith the friendship becoming more and more strained. Only in Sith did feel Hayden and Ewan had any proper and good(depends on opinion) chemistry,parts of it showed in Clones maybe or not?, the other thing they parts of spent Clones apart each doing there own thing only meeting up again towards(more attention on the Padme relationship)

I have said this many times I never felt we saw enough on screen of Anakin showing the attributes Obi Wan described "the best starpilot in the galaxy" "a cunning warrior" and a "good friend" part of the problem maybe George Lucas descion to start the trilogy with Anakin so young(but what could he do??) and Qui-Gonn not discovering Anakin but Obi Wan would have made it better, as would if Obi Wans intial attitude was different i believe Obi Wans words were describing Anakin in passing as "a pathetic lifeform" to Qui Gonn didnt help

It all seemed to be squashed into Sith making Anakins turn and betrayal of Obi Wan and the Jedi slightly less convincing maybe? and would have been better spread over two movies?