Anyway:
(1) The appeal of Doctor Who is baffling. It's like Pinky and the Brain meets Back to the Future except all of the characters are British and it looks like it was filmed on a camcorder on a budget of a few hundred dollars per episode and left in someone's basement for years until later it looks as like something filmed under the direction of a person who specializes in creating television for toddlers.
(2) Star Wars is series of amusing adventure stories set in a fun and imaginative yet generic fantasy universe that is about as worthy of this poll's designation as the Indiana Jones franchise is.
(3) Star Trek opens strong (say what you want about the original series, it has the virtue of discussing adult themes without taking itself seriously in the wrong ways). In its next iteration it suffers the indignity of becoming The West Wing In Space. Later, it becomes a generic action movie seasoned with a few pointless franchise references for cross-market appeal to Pavlovian nerds.
You know, nothing in this post (focusing on the first three because they're those I'm familiar with) is factually wrong, but the fact that you feel the need to articulate it at such length and with such authority as if you were desperately trying to enlighten the ignorant masses who dare to like these shows suggests that you don't really get
why they like them (whether it be despite or *gasp* actually
because of those TERRIBLE flaws you mention).