What is the best part of being a Mechanical engineer..?

I like engineering in general because it involves a lot of problem solving.  In the different disciplines you use different tools to solve problems and come up with solutions. I am drawn to the areas of Mechanical Engineering that use more math, as I really enjoy using math as a tool to solve complicated problems. Generally, the applications are visual or tactile in nature, and for me that is a big draw.  So the best part is that it involves areas I truly enjoy and am naturally drawn to: problem solving, math and tactile in nature. Granted there are areas of ME that are not so heavy in math or not tactile at all, which are interesting - but not what is the 'best' for me.