Who is worse?sheena or RV?

Since last week has been a drastic change in sheena's character who do you think is worse???Whose character do you feel needs to be improved??

I would answer this way- Rv is a better villian. abt sheena, ( no offence to preethi's fans) dont know what her intentions are- I mean she always seem to have the same expressions on her face and so its hard to guess.