Both versions are brilliant in their own ways. The UK version is so subtle with its storylines, yet features the outrageous Ricky Gervais. I've watched the US version since the first season and while season 2 was definitely my favorite, I still love every second of it. In recent years, my favorite character has switched from Jim to Andy. Then again, I think John Krasinski and Ed Helms are flawless human beings so I might be biased. :)
I'm still very sad about Steve Carell leaving though. I honestly don't think the show is going to last beyond next season, but that's just my opinion.
"And now this land means less and less to me without you breathing through its trees..."