I persoanlly find DVI on my LCD to be of much better image quality. The VGA always seems to be darker and have a green tinge. However it depends on how sensitive your eyees are and also which your monitor works best under.
<A HREF="http://service.futuremark.com/compare?2k1=6752830" target="_new">Yay, I Finally broke the 12k barrier!!</A>