Vos would take sabers in a decent fight, but Ti can basically end the fight with the Force whenever she chooses to.
In an all-out.. I could actually see it being a fairly drawn out fight. Whenever Vos pushes his advantage in sabers Ti would push him back with the Force - but I think it goes without saying that Vos is too durable to be taken out early. It'd probably end with Ti going full-bore with TK or something as a last resort.