I mentioned this earlier in the thread, but I really hate hysteric people. Not just in anime, but in every media and real life. I've seen some cute/funny scenes with him (how he fails at hiding, when he can't figure who Sogeking is..etc), but in general, the way he always panic irritates me to no end. Usopp annoys me too, but never as much as Chopper for some reason. Brook, Luffy, Sanji and Zoro are my favorite, and I don't imagine my opinion changing much considering the characters didn't change between their introduction and Thriller Bark.
I'm not planning to skip any segment. Seeing the part I missed was the reason why I started reading the manga.