You pick one, there's no difference between
LoF and
LoS in Infinity.
If you're playing Qapu Khalki and planning to link 4+ Odalisques then you would usually go for 360˚ Visor because you'll get Sixth Sense from linking.
If they're not linked, I go about 50-50 for either. As great as Sixth Sense 2 is against camo attacks the Odalisque has an OK chance of surviving anyway thanks to
NWI.
360˚ Visor makes her a
much more effective back-zone defender against
AD troops and fast flankers - unlike a model with Sixth Sense you can't avoid the Odalisque by moving behind and you can't 'bypass' 360 Visor close-up by forcing a Change Facing
ARO within the 8" Zone of Control.
Being shot through smoke is where SS2 really makes a difference, but that's what Djanbazan and/or a link team are for.