After all of that... I say Wily
Wily's weakest minions actually can attack, unlike Eggman's ones. Then, because they used all of Eggman's stuff, you should combine Wily's best work. SUPER BASS WITH THE ULTIMATE AURA.
And Shadows, specifically Shadowman with his shadows.
--
Official Pidgeot of the B/W Boards Clan
:D