Originally Posted by enjolras
Lucas simply failed to motivate the level of evil required. He wasn't crazy... so there goes the Hitler style evil. It had something to do with lack of respect and fear of Padme dying.. and a lot of whining.
Going into any more detail requires spoilers.. so I'll stop now.
In my mind, the Emperor
was the Hitler-like character pulling the strings of his new first lieutenant. Anakin was always motivated by a lack of respect from his peers, and Palpatine played to that anxiety to get what he wanted.