In no particular order:
That there be no such thing as high cholesterol.
That I could drink as much as I wanted without a hangover.
That I'd win the lottery.
That I could sing in a supergroup featuring Bob Dylan, Neil Young and Eric Clapton.
That I could sing.
That my wife let me buy madras shorts to golf in.
Head on over to We Work For Cheese to see what the rest of those yahoos would ask of Satan.