Light, obviously.
Nah, light sucks. Stop being stupid.
What are you going on about? Light doesn't have any sort of amazing synergy between it's characters. What makes light relevant is content that forces you to play as light.
Come on man, show us your amazing synergies.
Ok, so you don't have any. How about this: The team in that no damage webm had two 9.5 characters in it. Which character would you use in place of The Maids to make the team have amazing synergy? Since you said that you use the same strategy you should at least be able to answer this.
Using Ferry and Song together is the exact opposite of synergy.You'd have your multiattack buffs when you have no damage buffs and your damage buffs when you have no multiattack buffs.