Here is my list. It is my opinion on my favorites. So really, if you disagree...
Best and favorite comedy: Seinfeld
The rest are in no order: Community, early seasons of The Office, original Bob Newhart, early seasons of Scrubs, Good Place, Arrested Development, Frasier
For dramas
Justified is sooooo good.
The Americans, Longmire, Breaking Bad, NYPD Blue
I am going to leave out British shows. Hard to compare.