Wich all mountain bike?

Glyn Richards

I am going to build my spech enduro into a new frame.I will use it for all my riding wich usually is climbing up double track to find something steep and knarly to come down as fast as poss.I also do 3 alps trips a year.The most important thing is how it decends rather than climb.My enduro has 36vans.I have narowed it down to a few frames.
Ibis mojo hd carbon
Santa cruz nomad carbon
Yeti sb 66
or maybe just buy another Enduro.
Has anyone got any thoughts that would help me to decide.
Many thanks,Glyn