I don't think either are bad , I think Hayden Christiansen plays the role very well in both films .
In AOTC he's supposed to be cocky because he's a teenager .
In ROTS he is an evil muthaf*cka , but this is the dude that becomes Darth Vader , do we really want him to be nice ???
If anything in ROTS he was a little too gullible , falling for Palpatines lines hook , line , and sinker .
Yes but jar jar isn't a whiny self centered,egotistical,obnoxious jackass who fails at everything he does and can't even ask a chick out without coming across as a perverted nerd. As for an annoying voice with the amount he bitches his voice gets really annoying in a rip out his guts and strangle him with them sorta way.