It will be funny regardless.

Preference of a version will have a lot to do with culture and what you grew up on. I have seen both versions and while I did find some of the UK version funny it was nothing like the constant laughter I get while watching the American version. But I'm American, so there you go.

But saying that a popular and successful show is trying to suck a franchise dry just because it lasted more than two seasons is just silly talk. Maybe after 8 seasons when Jim & Pam have split up and got back together 3 or 4 times we can start that.