Well, first of all, I'd give somebody the ability to bestow powers (without the added bonus of controlling people he gives powers to), then I'd have him give me any other power (Besides Conditional Ability Bestowal itself) that I wanted.
Then I'd raise an army, using their combined powers to conquer Madagascar or some similarly awesome, exotic place (perhaps NUMEROUS islands, even an archipelago), and make my very own Genosha.
“…Judge not what a man has done, but judge what he could have done if he was a different bloke altogether. For art thou a leper? And a leper can changeth his spots…” --Rudy Wade, Misfits (Series 4, Episode 8)