Cloudman on 28 October 2017
Personally, I don't think they're similar enough to make a comparison. I mean, Knack 1 and 2 only have 2 play co-op, while NSMB has 4, as well as 3D vs 2D style games. It'd make more sense to compare Knack to Mario 3D World, and yet that is 4 player as well.
Although, to answer the main topic, I'd go with NSMB, as I've played it with 3 of my friends, which were really fun, hectic, intense sessions every time we met up. We'd laugh and scream a lot from the chaos that'd happen with many of the levels. I don't think Knack could compete with that.
Dance my pretties!
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