I like how the word "hegemony" made it into the list of least liked words. I really quite like the word "hegemony." It's a very specific descriptor. An absolute powerhouse. This is probably my political side kicking in.
Much of the time, I dislike the use of the word "regime." This is because it is used wrong so much of the time. It does not mean "administration." A regime is a set of norms. The way things are done, both on a higher political level, and on the level of civil society. So "the Clinton regime" is simply the way things were done specifically while Clinton was in charge, rather than being an identification of the people involved in the administration.
Almost any word that starts with an S and contains a long-E phonetic sound. Squeak, Scream, Squeak, Squeeze, Seize, Seeth, Seep, etc., etc. I just don't like their sound. At all. *smacks self* I'm just crazy.
All adverbs in existence. They always crop up in my writing every other word whether I mean to add them or not. Nobody just does things. They have to do things slowly, softly, gently, briefly, absently, slightly...
Requiem, revenant, sonata and sanguine all irk me, the words themselves are fine but the way they've been used by a generation of hyped up Japanese RPGs and then reintegrated as words that are now supposed to be 'cooler', especially in fantasy titles.
I should add Pavane, though I'm guilt of using that one sweatdrop