There is no reason you need msn service if you have fios installed.. Use your firefox or IE browser to surf the internet and stop paying an additional 30 dollars a month for msn service ( if I read you correctly ) otherwise if you are talking about the messenger service like live messenger vs yahoo messenger then I prefer live msn for talking to people. Lots of nice features, nice interface, great scripts and file sharing.. Nice..
MSN or YAHOO come free with verizon btw