It's hard to say unless you let us know what kind of stuff you ski and how aggressively. For an average park ski I would say around 174. A good rule of thumb is to get a ski about as tall as you are for average riding. Adjust from there depending on your personal preferences.
The third integral is the hypervolume of a four dimensional object.
"Landing any trick with what appears to be done with extreme steeze. Usually done by placing hands infront and or behind the waist and leaning backwards in a relaxed position".
LG Sterino and Alex Schlopy are my favorite skiiers