These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Creator Worship: And how. Dollhouse was renewed for a second season despite low ratings because network executives knew they would receive fifty thousand emails from Whedon's decidedly vocal and devoted fanbase if it were canceled.
They call it the Cult of Joss for a reason.
Designated Protagonist Syndrome: Seen by some as a repeat offender. Buffy and Echo are often considered boring, overly-shilled, or just outright annoying in comparison to the rest of the cast.
Really, of all his four (so far) Tv Series, only Buffy the Vampire Slayer was ended on his own (and the actors') terms rather than unceremoniously cancelled (though Angel's five-season run was quite impressive).
Tear Jerker: Damn you and your writing talent, Joss Whedon!