lol
I loved the Emperor. I loved the bit where he goes "No...NO....NO! You will die!".
That was the moment where I became a kid again and was seeing Emperor Palpatine, the evil dude from ROTJ, as opposed to Ian McDairmid.
I thought Mace vs Palpatine was also a huge surprise and was actually better than Yodas fight later.
I loved Palpatine's snake-like fighting style, and the way he was like a spectre during the Yoda fight. Greatness.