Recently? Damian's lines on this page of Robin War #1.
I'd also have to say TA Hulk was pretty hilarious this week. I can't choose a funniest moment, as in definitively, so I hope you're okay with this, OP.
Grenade punt by Frank never fails to get a chuckle out of me.
I love this series. Best part about it it's how you don't expect it to be this hilarious given how it looks.