This is a fair Argument~
I would have to say Hayden's portrayal because of the way he carried the storyline of Episode 2. In defence of Jake though, this maybe contributed by the great script and storyline of Episode 2. (And the fact that Hayden fancied the pants off natalie portman).
Also Jake's portrayal of Anakin in Episode 1 is wooden this maybe contributed by the age and lack of experience of Jake Lloyd.