I don't really feel anything about tropes in general, they're a tool for creating fiction after all
. But if you were asking about how I feel about certain, tired and... (cough) overused ones. That's a different story. The current comic I have, literally tackles some of typical romance tropes that I've seen a bit too many times.
As for one my favorites that I can think of from the top of my head? I'll say, villains siding with the good guys. I get annoyed at good guy turns out bad, but I don't mind the opposite for some reason, but they should have a good reason for siding with the heroes in the end of course.