Xwindows and Windows
2015.06.19
Exceed is the best. Unfortunately, it is pricey: http://connectivity.opentext.com/buy-online.aspx
Your other options are:
MobaXterm: in free and pay versions, pretty simple to install/setup and use.
Xming: free (old version) or pay (current version), also pretty simple to use.
Cygwin/X: complicated, kludgey and you should probably avoid it.
http://stackoverflow.com/questions/40453/what-is-a-good-and-free-x-server-for-windows