Replying to New skis - Advice/Thoughts needed

i need new skis for my new boots.

choices is VOlkl Gotamas or Mantras.

I skis blacks, double blacks, trees(glades), backcountry, bowls, and of course deep POW!

I be 5'11", about 160 lbs. fully loaded.

So I'm thinking 183 in length. maybe 176? what do you think?

FIrst, what would you wanna rock, and second what do you think would be best for those conditions? What would make you happiest in all those spots?