It's morbid and cruel, but when Syd's in pain, I'm happy - it's just so scrumptious. Not because I like to see her depressed, but because Jen's acting is so ultimately incredible that I love seeing it being challenged. Alias is a drama, and I like it that way.
Not to say I don't love Sydney's happy moments. Of course I'd like to see Sydney galloping away with Vaugn when Alias ends.