The Greatest WWE match ever? (want your opinions)?

in my opinion it would have to be Edge vs Undertaker at wrestlemaina 24. with the great mix of old school vs new school. The greatest superstar the wwe has ever seen in undertaker vs the future of wwe in Edge. Though, Edge I think does gets over looked he is the staple in which the wwe will go when undertaker is ready to retire. I would have picked a John morrison match but he has yet to do a wrestlemaina.