I strung with these two fortunately, the star 5 is straight forward machine. Have easy mounting system, clamps are great and good tensioner. The wilson baiardo has lots of features. The one thing I like is that machine adjusts to my height and tilts it for me, making it easier to either string the mains and crosses. They are remarkable machines.
To reply to Litespeed, I know that the Wilson baiardo is being used at the us open and Australian open. The babolat star 5 is used at the French open. I think prince neos is at Wimbledon.
"If it's broken, break it til its fixed"