It's a very reasonable question and my answer is no, of course it isn't! If you want a basic reason (it is a basic question, nothing wrong with that) then I'd give the 'quantity does not mean quality' line in this case.
But let's break it down into sectors for the anoraks out there (nothing wrong with this either) -
Stand up - Never been more popular, is probably the most talked about sector of comedy now. Conclusion - best.
Satire - Still has a lot of good practioners and it still has an audience but the golden age of modern satire is still the 1960s. Conclusion - not best.
Anarchic or unscheduled comedy events - A bit of a new phenomenon I think and it has its place. Conclusion - best/no contest.
Family comedy - This has been hit hard by the general crudening of our culture and language, it struggles to survive on evening TV and exists mainly in kids' TV and films. Conclsion - not best.
The TV sketch show - Still going strong despite there being a minefield of previous material to try and avoid. Conclusion - not best (but is almost impossible to be so).
The TV comedy panel show - Another very popular modern form, there is no shortage of panel shows on or likely to be in the near future. Conclusion - best by miles.
Radio comedy - Lots of it still about and there is still a hard core but smallish audience for it. Useful as a breeding ground for TV comedy shows but radio today is not the organ it once was. Conclusion - not best by miles.
The comedy drama - Well, hmm, tough one to analyse because much modern comdram is finding its way into sitcoms. If you class this new stuff as comedy drama then I think it is in very good health and has taken a slightly new turn from the old style comedy drama. No bad thing, but will many of them be classics like Minder for example? Don't know yet. Conclusion - about even, too close to call.
Funny literature - Has seen some very good new creations over the years and it seems to be going strong, but it has severe competition from the past. Conclusion - I'm not sure, split decision/needs more research.
Lastly and not leastly the TV sitcom - Blimey, if there was ever a comedy form going through a transition then it is the once simple sitcom. There is a sudden wave of very good sitcom material hitting the TV screen now but generally the best of them are aimed at a non family audience and are getting cruder and as a result are getting shown later. That's okay, but they are taking the place of the old primetime classic, the sitcoms that got watched by millions and repeated at work and school the following days. Conclusion - not best.
Score - the past wins by 5-3 out of ten. There you are, your school project is sorted. Morning.