Wgt is the only golf game I played, that has made that shrine of ball thing....
It actually are not balls, but abilities you are buying and temporarily increasing while you are having that ball. Those abilities in other games would be connected to player stats, and you could master your game based on that, but here they come and go together with different balls...
So, I guess best way is finding one that combined with your reflexes and experience in playing games gives the acceptable results for you. I could never go with the expensive nike balls, cause idea of losing 2-3 $ in one shot just hurts my brain. (real life material nike Rzn 10$ a dozen...here 7-8$ for 3 virtual balls).... But again its just not balls ,it is paying to have abilities, which would be nice if lasted for specific amount of time, not losing it on bad shot or wearing it off by just playing
Other thing is that flash player way of working will trick you with any ball (meter seems to have mind of its own especially on hard, near hazard shots)
I personally suggest srixon z-star..I find it most useful and reliable. Gives you standard abilities as you would get with most balls WGT is gifting..maybe its little fast when you dont have all top clubs, but with good equipment I think it works just fine
Nik