Las Leñas optimun ski, which one to pick

Hi all,

I live in argentina and I spend almost all the winter hollidays sking. The ski resort has great powder so I think on buying new skis for allmountain and powder terrain.

Hight: 1.79 cm
Weight: 82 kg

The options I have found are the following:

Atomic Access 171cm
Salomon Czar 174cm
2013 Line Influence 105 172cm
2013 Head Motorhead Hammered 115
2012 K2 Hellbent 169cm :)

I really like some playfull ski that can also be use in the powder.
I never heard about the Head Motorhead Hammered, but I can get that one for a very cheap price. Some has any information about the head?

Also something I pay lot of attention is to the durability of the skis.

Well thank all for the help.