[Calderyon]

Friends and BBGT were both good at the beginning, but when time passed and the shows grew older, they lowered their quality. Friends was okay at the start, then they heightened their quality and then lowered it somewhat time after time until they were canceled/series ended, but managed to be very funny most of the time.

BBGT was very good/excellent at the start and by season 3-5, it still kept being quite good/okayish, but by the time Amy discovered her sexuality/Howie-Bernie getting serious, it started to go downhill first slowly for a few seasons and then fast tracking and it has gradually stayed on that course, not slowing down ever since.

Answer: Friends is better as it kept much of it´s funniness and quality throughout the years.