Yeah, I admit it....I can be a Warmachine forum junkie!
Too often I find myself pouring post after post of nothing in particular, looking for nothing in particular, and finding...nothing in particular! In all seriousness, it does take a lot of sifting to find the warjack cortex in the box of leaves.
Polar Bear, one of the forum welcome wagon has an awesome article on the forums. The gist of it being, just play what you like, get familiar with the rules and quirks of the army you like, and don't let others tell you what to play.
Here endeth the lesson.