If it were me, I would chose the Tos over the other 2. The vertex, if you get a good one, last quite well. If you get a bad one, you will regret it. The Prat chuck is only their standard stuff, and the last standard Prat they brought at work is just terrible compared to the 40 year old Prat chuck. The Tos chucks I have had dealings with were from about 20 years ago now, and is still in a very good condition and still quite accurate over the entire range.
As for spare parts, order them when you order the chuck. Waiting 10 years then to go and get a replacement set of jaws, most likely that model chuck and jaws won't be available. Then if they are like Prat, charge you a huge amount just for the jaws, that you may as well by another chuck, and put the jaw set on that are not normally used.
Neil