I'm a bit confused by your post as to whether you like the leader version or not....I still have no idea how to get his legs wrapped around in jet mode and it's been pissing me off to some extent - almost to the point of returning him. His bot mode is decent and easy to handle, but I'm baffled by the instructions as to how to get his legs right in the alt mode. He's actually the first TF that I threw back in the box and said **** you
Oops, sorry. To clarify, I think the Leader Class Megatron is the better of the two (Leader vs. Voyager), and I actually like the Leader Class version quite a bit. Likewise, the robot mode of the Voyager Class Megatron is nice as well, although the Cybertron Jet mode is really wonky.
As for the transformation of the Leader Class Megatron's legs, I know exactly what you mean. It took me forever to get it right, and off the top of my head, the best advice I can give you is to do the transformation steps out of order, because if the wings are already down, it makes it much more difficult to get the legs under there. Make sure you move the shins outward (which triggers the automorph feet) and then rotate the hips in a "splits" position. When you move the crotch upwards, the feet should be facing downward, and there are little white tabs that fit into snap holes on the undersides of the wings.
I know that probably isn't the best explanation for it, but it took me for-hell-and-ever to figure it out myself, so I can certainly empathize with you.