While I agree with everyone about the PT problems: overuse of CGI, plot inconsistencies, midiclorians, etc. My biggest gripe is I don't give a shit about the characters, so the movies will never resonate with me.
Anakin and Padme just do nothing for me, and I say that because when they face tragic situations at the end of ROTS, I felt nothing. A movie works when you feel for the characters and their struggles. When Han Solo gets put into carbonite, that is a very dramatic scene, yet when Anakin is lying there in lava, I didn't bat an eye.
I like Obiwan and I like Palpatine's character in the PT, but Anakin & Padme are the reason this trilogy is made. That is why I still don't know if I will like the ST, because the new characters have to resonate with me too. Sure Luke, Leia and Han will resonate with me in Episode 7, but Episode's 8 & 9 will be about the next generation, and hopefully those characters we care about, or the ST will be facing the same problems as the PT.