Hmm... On one level i agree with you, in that i rode Morzine/Les Gets/Avoriaz on my HT Azonic with 130mm travel up front, and i managed to spend the whole 2 weeks without any major crashes.
HOWEVER: I can guarentee i would be faster/happier on a full suspension.
The braking bumps on the DH/World Cup/Dual courses are insane - Worse than i have seen on any European course, let alone any UK course.
Whether you go full sus or HT, one piece of advice i can give is:
GET A CHAIN DEVICE!
My holiday would have been 10 times better with one.
Get some decent tyres too.
And make sure your disks (don't even bother going with anything else!) are working in tip top condition.
Bring as many spares with you as possible.
I snapped a SNAFU pedal axle, snapped a pair of cranks and raped a tyre, all in the space of 2 weeks.
I've not snapped anything on that bike since, or before Morzine!
Anyways, enough ramblings.
Have fun.