I find SolidWorks really powerful and easy to use, therefore I stick to it.
It does not really matter which software package You use as long as You can achieve what You want to achieve.
Both, SolidWorks and Pro Engineer, are widely recognised and used in industry; usually employer requires potential employee to know either of them, unless company is strictly using only one brand (be aware that there are quite a few companies who use AutoCAD or Inventor, etc). All in all, all these packages are similar in one way or another, if You are good with one it will not be a big problem to learn the other.
When I started all CAD stuff I've found SolidWorks very straightforward and intuitive, therefore I vote for SW.