Funnier than grimsby

Both were funny but Grimsby had the bigger laughs

I watched them both in a span of 2 days too, and I also preferred Keanu.
I've seen all of Baron-Cohen's work but had never seen anything by Key & Peele before.
Grimsby had some funny moments, but relied too much on gross-out humour, and a lot of the jokes fell flat. Keanu, while not fantastic, certainly made me laugh more and was the more disciplined film. I'd welcome another Key & Peele film, whereas Baron-Cohen seems to be tarnishing his reputation with every subsequent post-Borat film he makes.

I watched them both back to back as well

and I agree, Keanu was better

"Abortion is green!"
Doug Stanhope

Was actually thinking the exact same thing after watching this. I didn't mind Grimsby, but there were a lot of groans and missed jokes there. Here it was far more consisntently funny and fresh, though it might help that I was unfamiliar with Kay and Peele up to this point.