Yes, humor is a subjective thing...
I've always enjoyed George Carlin's take on things and I've seen him live twice. He's also a good actor, given the right script.
As has been pointed out, "Friends," is naught more than cardboard cut-outs. The characters have no depth and the reason most people tune in is to see which friends are going to sleep with which friends...Really not much more than a pathetic soap opera, to my way of thinking.
"The Office" (American version) sucks. I'd like to see the British (original) version because I have no doubt that I would find it quite funny.
The "Black Adder" series was fantastic and I enjoyed watching that on DVD a few years back when I was in England and a friend of mine had the entire thing in his library...We spent many a-night watching these episodes. Don't care much for "Mr. Bean," though...
And, say what you will, Benny Hill was a truly talented and funny man. He didn't make it early on in stand up, but much of his humor is based on some very subtle, facial nuances. He wrote the words and music to his song material, much of which I find terrifically funny.
"Fawlty Towers" is much underestimated...I found its short run to be one of the great comedies of the day.
Which, of course, brings us to Monty Python. Genius!

I further have enjoyed watching the carreers of the original Python cast play out over the years. A talented troupe.
I found "Cheers" to be funny and there are 7 episodes (I believe) where we see Harry Anderson play the role of "Harry the Hat." Y'all do know who Harry Anderson is, right? I also enjoyed "Night Court," which, of course, starred Harry Anderson.
"Taxi" was one of the great American comedies, as was "Barny Miller." (But, most of you are probably not familiar with "Barny Miller.)
Personally, I find great enjoyment in American comedy as well as British comedy and I would rank neither higher than the other. Although, I find American sit-coms to be a glut of stinking garbage, for the most part.
Mike.