I use Opera.

I don't know if it is the "most" compliant, but it has no proprietary extensions, and sticks to some of the standards much more closely than IE or Netscape. That is why VBForums look so bad in Opera. The page is not terribly compliant itself.

Everyone should just ignore Navigator and Communicator and stick to Netscape 6+.

And no one should ever say that Netscape Communications sucks. They have innovated several things that have helped to shape the industry. This is evidenced by MS's repeated attempts and copying and destroying Netscape.

Can anyone name anything that MS has contributed to the growth of the web?