Well, Warlock, the whole end of Ep2 was lifted directly from Ep4, for example. Boy and Girl, robot hand, two droids, looking off into the distance, etc. I guess, though you're right. For the most part its themes that are reused, but the problem is that they're OBVIOUSLY reused.
Personally, I don't have a problem with Anakin being whiny. I do have a problem with the way the actor portrayed him in Ep2. At no point could I believe I was watching the young adult version of the little boy in Ep1. I don't give a damn about Vader yet. There's plenty of time for him to get from whiny adolescent to hate-filled badass later.