I choose really not to compare the two shows. They each have their strong points. A lot of British humor is just that and it's hard for me to get right away through the accents and all. I'm more of a fan of the U.S. version. While the British Office pretty much ended with Dawn & Tim getting together, I don't think that will happen with the U.S. show. Who knows, they may not get together at the rate things are going now. Jim is in Standford now and I guess we'll have to see if he goes back to Scranton
If you've sworn off the U.S. version entirely, I highly recommend giving it a chance. It's hilarious in its own way and is really just a completely different show.