BAAAAAW
2cc IN Lunatic with Border Team. I can maybe do this if I can stop sucking at the stages. I still think that the Netherworld Team is just as good, though perhaps not better. Though it seems they have more potential than the Border.
I mean, for the Netherworld Team, you've got faster unfocused speed, the strongest unfocused shot, the second strongest bomb regardless of distance... Yuyuko's death butterflies kill virtually all stage enemies regardless of where you're at, giving you more freedom and damage output than Ran can.
Actually, thinking about it, Youmu is like a stronger, harder to control human Yukari, and Yuyuko is a weaker, though easier to use in stages, youkai Reimu (including a deathbomb that's twice as strong).
On the other hand, Border Team gives Reimu a stable power and an easily controllable speed. Her bomb doesn't suck, and her deathbomb is among the strongest. Yukari has amongst the most reliable focused shot that you can occasionally manipulate to kill stage enemies in multiple locations. And if you get hit and deathbomb... You get Reimu's fury. The smaller hitbox only really seems to matter in IN Extra at the deathfairy, and the not getting hit by familiars part is only applicable to Astronomical Entombing, Xu-Fu's Dimension, Shoot the Moon, so...