Which ball do you wish you still had or never want to let go of? I believe everyone has had a ball that was drilled perfect, came off their hands the right way, average increased, you name it. I personally had a Orange Pirahna that I loved. It would hold when I tug it (as always). And it would come off the ditch back to the pocket when I threw it out. Unfortunately, my ball got chewed up in the machines at AMF Union City. I opted to replace it for some strange reason with a Critical Mass. I don't remember the manufacturer for either ball but I can say I made a "critical mess" by not getting another Pirahna. Let's see which manufacturer wins this conversation. (Storm, Ebonite, Morich, Hammer, Track, Columbia, etc.) Let me know of your favorite ball.