It depends on the program (or programme? lol). Like, for the longest time I enjoyed the The Office US more than The Office UK, but I had watched the US version first, so I was super biased. It's been years though, I may need to go back and watch the UK version, especially with subtitles XD. But I really do love shows from either country (Parks and Rec and Arrested Development, The IT Crowd and Peep Show, etc...). I haven't watched any recent shows from the US or UK though so I'm probably missing out :c.
Oh, and I'm an American, btw!! Should probably mention that.