Characters that I hate:
Spandam: For everything that he did to Robin and Franky and then later for wanting to kill the rest of CP9 for failing the mission. Also he was so weak and cowardly.
Wapol: Most annoying and pointless villian ever.
Nezumi: Super annoying minor villian
Charloss: God everytime he appeared on screen I wanted someone to smack this guy. Thank God Luffy did.
Absolom: The whole Nami bath scene and then the wedding part later very much disturbed me. I started feeling nauscous any time he appeared on screen after the bath part.
Characters that I like but sometimes frusterate me:
Nami: She is my favorite character, but everytime she needs saving I just want to smack her. (It happends like once and ark?) It's not so much that she needs to be saved, but that she is capable of taking care of her self and that she never takes any real damage. Yeah other characters often need to be saved, but that is usually after they have taken a beating. In Skypea, Nami was the only straw hat that wasn't zapped by Enel's lighting. (Luffy technically was, it just didn't affect him)
Sanji: Sometimes his love cook mode gets very annoying. I also get annoyed how tends to act as though he owns Nami. Like in Thriller Bark with the whole wedding thing. I get that it was supposed to be funny, but his attempt to save her seem to be more because Absolom saw her naked and was trying to take her away from him. Not because she was in danger.
Hancock: I get very annoyed that she can get away with acting horrible towards others simply because she is beautiful. Ugh. I wanted to smack her when she turned those three girls in Amazon Lily to stone, then acted all cutsy.
Characters that would be fun to punch:
Crocodile: just to watch my fist go through his face. Then later watch his face go back to normal.
Lucci: I'd imagine that he'd not blink or even change his facial expression when punched. It would be fun to watch.
Kizaru: Same as Crocodile
Aokiji: Just to watch his head shatter into ice fragments.
Alvida: Just to watch my fist slip off her face.