Senator's first verse was actually pretty good - he doesn't have much dirt on Scuare but still makes a lot of personals even though they're not as hard-hitting as they could be. Obviously he has a disadvantage from going first. The Atmosphere line is decent but KillBill played it better in the last battle. The Obama line isn't bad but you really set yourself up for Scuare's flip. How did you not see that coming?
Scuare's first verse has a lot of venom in it - not sure if these two really have beef but he flips a lot and his personals are downright cruel, whereas Senator's personals were relevant at best. A little weird how Senator ends his verse saying obvious TWICE and Scuare opens by saying it two MORE times. Given Senator's tendency to contradict himself, the 'your flow's shortsighted' line is incredibly strong - he's flipping a line that Senator hasn't even delivered yet! Worse, Senator goes right ahead and walks right into it. Ouch.
Senator's second verse is the weakest in the whole battle. He gets in a few mediocre flips and has a lot of filler. Honestly I feel like he buried himself with this verse. Kind of disappointing since his first verse shows he could really come a lot harder.
Scuare's second... Holy shit. Flips and personals galore, a smooth flow from one subject into another, and no filler. The "no, I dissed you 'cause you suck at it" line is easily the best flip in the song. I don't have much to say about this, Scuare killed it.