I wasn't really here for his live vocals later on in his career... but that man put such a huge stamp on pop music... ****, pop culture. Overrated? Nope.
It's difficult for me to say. Personally, I didn't like any of his music, but a lot of people did. For me, he is overrated. Others will think differently though. I think he is credited for more than he deserved, though.
But was that asked? Let's stick to the topic at hand, girls. Don't get yourselves warned. It's about the deceased, not Madonna OR Janet (I see you Skyler).
I don't think any artists are truly overrated. They are rated as highly as they are hold in esteem by the public and obviously a lot of people think that Michael has done a lot of thinks to deserve their esteem. In my personal opinion though, well, I don't like him as much as many other people do.