Which DMC first?

I just bought DMC 1, 3 and 4. Couldn't find 2 but I heard it was shit anyway.

Which should I play first?

In order.

Storyline I believe goes 3-1-2-4 I wouldn't bet on that though.

And yes, 2 was shit. If you want somewhat of a storyline, go 3-1-4. But it really doesn't matter.

And it is kinda better to play in order.

They are best to play in order, but my personal favorites based on how good each game is goes, 1,4,3,2. And yes 2 is pure shit, I would rather rip my dick off and put it in a toaster than to play that shit again. Lmao