Don't get me wrong, Neil deGrasse Tyson is a brilliant guy, and he's doing more for science education than almost anyone else alive today, but Sagan had a real talent for being profoundly inspiring on a deeper level.
He has an amazing talent to boil down complex science into engaging communications that regular 'ol folks like myself can understand, yet still rich enough as to make me think about the topic for a terribly long time afterwards.