Seriously?. I agree with MD. Apart for NPH playing straight (expected from what they pay him), he also manages to play layers to the character. There is the surface amoral, self-centered, schemimg womaniser, but that character is also recognised in-show, from the very first episode,as "the lamest single person alive (and that was his best friend talking). And that both of those personas are no more the real Barney that the suits he claims define him (in fact they are suits he wears to avoid being the loser he fears he is.)
I STILL hate the freakin’ acting!