PageMethods还是通用处理程序？

I am making a site where users can reply to topics, open topics, etc. and when the user sends a message, I don't want to postback; it's ugly.

I'm using generic handlers right now but I am having some problems with it. Like updating GridView using UpdatePanel when XMLHttpRequest's onreadystate is changing.

I decided to use PageMethods but I also wanted to ask you.