Which Engineering Should I do?

<p>So I am looking at multiple engineering fields right now: MechE, ChemE, MatSciE.</p>

<p>I am more interested in energy, i.e. renewable sources, solar, etc. A little interested in petro, and have interest in cars, designing new cars, running on alternate fuel, etc.</p>

<p>And which have good job prospects? And range of difficulty?</p>

<p>MechE (10 char)</p>