My first choice would be the AMF Sumo as I'm still using one and shot 152 over for my all events in our city championships last weekend and the other would be the Ebonite Crush/R.
Without doubt the most versatile ball I ever had
Storm metoer Flash
If i had to choose a second would agree with George.....original track triton was a mighty fine nut
Have to go with the Original Sea Wolf
And one i only used for a year or so as a kid quite a while ago but i gotta say the RED Brunswick Edge. Loved that ball back then
after reading all replys im still nodding at all the great balls i remembered. must say triton heat comes to mind (had 3 of them) but i had a lot of fun with a loaded up lightning storm.