I think the answer to this will be different based on where you're from. Granted there's like 1 or 2 people out of 10 in the USA who will say The Office UK is better but the majority will choose the USA version. in the UK probably the same.
Loved watching The Office (USA), couldn't even watch the first ep of The Office (UK). Was cringing so much it started to hurt, heard it's a meh before I watched it but it's a shame I get bored before if anything funny/interesting happens. It could've been a great show but the writing team wasn't the best in my opinion.