The 2nd Generations Leader AoE Optimus Prime is a decent enough figure. While the robot mode is more kibbley than this Voyager, it does have a more solid looking vehicle mode and superior colours and sculpting -- but of course, at double the price point. So in relative terms they're about on par with each other. The First Edition Leader AoE Prime toy on the other hand is just bad.
TLK Leader Optimus Prime is slated to be a redeco of the Generations AoE Leader Class figure. That's a pass for me.
http://tfwiki.net/wiki/Optimus_Prime...r_Class_toys_7