Starting hands

I am a beginner/low intermediate that is still trying to figure out what hands are good preflop. I've been using this site as a guide and it has helped me win quite a few low stake sng's in the limited time I've played :

http://www.toptexasholdem.com/texas-...artinghand.php

However, looking at this site I've seen a few posts where people recommend raising preflop in a full table with KTs or QTs, while this site says to call and if it's a raised pot, then fold. Just wondering if any of you experts care to critique this site's starting hand guide, it would be appreciated. I'm well aware it's just a guide and position/#players remaining/looseness have to be considered, just wondering if there are any differences in this guide and what starting hands you usually go in with in the early rounds of an sng.