Black Lantern Kal-L looks at Superman's emotions, where Supes outclasses Hal Jordan in one panel:
Hal's had to work at representing the emotional spectrum over a few arcs, while Kal-El shows how to be a happily jumbled emotional mess simultaneously. OK, he doesn't have greed or compassion represented, so Hal has one up there (the greed), but still, it's Rainbow!Superman.
This development might have something to do with Kal-L's little killing spree earlier in the book...
Overall, I think this is my favorite book of the event so far, if only because it has the horror-movie effect of not seeing anyone getting killed on-panel, but the black ring power level jumps up along the way.