I primarily have been using the Legend GI2-SD2 and GI3-D BALLS and confirm the Legend GI2-SD2 gives 95 hits.
I'll add:
WGT GI3-D - 1.5-dot durability -- 110 hits
Looking at racoondad's info above and adding cost information:
WGT GI3-D - 1.5-dot durability -- 110 hits -- 31.33 cr/ball -- .28 cr/hit
WGT Tour GI-SD Ball (LT BLU) -- 1-dot durability -- 90 hits -- 37.33 cr/ball -- .41 cr/hit
WGT Legend GI2-SD2 Ball -- 1.5-dot durability -- 95 hits -- 51.67 cr/ball -- .54 cr/hit
WGT GI-S Ball (WHT) -- 2-dot durability -- 120 hits -- 16.33 cr/ball -- .14 cr/hit
Callaway Tour i(s) Ball -- 2.5-dot durability -- 120 hits -- 83.33 cr/ball -- .69 cr/hit
Figuring 9 holes, par 36, 100% GIR = 18 hits (as putts on green don't count as a hit.)
NUMBER OF 9 HOLE ROUNDS PER BALL AND COST PER 9 HOLE ROUND
WGT GI3-D - 6.1 rnds -- 5.1 cr/9 holes
WGT Tour GI-SD Ball -- 5.0 rnds -- 7.5 cr/9 holes
WGT Legend GI2-SD2 Ball -- 5.3 rnds -- 9.8 cr/9 holes
WGT GI-S Ball (WHT) -- 6.7 rnds -- 2.5 cr/9 holes
Callaway Tour i(s) Ball -- 6.7 rnds --12.5 cr/9 holes
The $2.50 per 3pack of Callaways are 5 times more expensive than the lowly GI-S, 2.5 times more expensive than the GI3-D balls I now use, and 28% more expensive than the Legend GI2-SD2 balls I also use.
Seeing as how I'm not good enough to win many credits in the free tournaments, not allowed to enter RGs or MPCs because of my state of residence, the only way for me to get credits is surveys (which I hardly ever qualify for), offers which tempt me to create a need for stuff, and my wallet.
I might try a pack of Callaways just to see what all the fuss is about, but I doubt they are in my future plans.