An 8 from me. (- point for that last scene + I still cant get over L's overreacting ..
)
For those peoples calling Misa stupid.. remember that the characters dont have the god view that we viewers enjoyed.. thus what Misa did is rationalize IMO.. She's acting as a normal Kira's fangirl (well, not so normal in her case).
I love Misa potrayal to be honest.. her naiviety is well done.