There have been millions of balls created, but there are just some balls that seem to stand out, over time. For me there were some balls that just naturally fit my style, and the kind of hook shape on the lanes that I am looking for! And then there are some balls that I loved because of the confidence they gave me, or the honor scores I was always able to achieve with them! I love a lot of the newer stuff, but generally speaking only get to use them at tournament time, because they are so strong. Here's a few offerings that I remember well....

Storm: Prodigy and VG
Roto Grip: Horizon Solid & Pearl
Ebonite: The One & Killer Instinct Pearl
Brunswick: Red Alert & Strike King
Columbia: Messenger & Reaction Rip
Hammer:3D Offset & Toxic
Track: Animal & Project X
Azo: Fantasy X
Visionary: Orange Warlock

I often wonder, is there a collective attribute running similarly in all these balls? Or is there a certain reaction relative to my style, that made me like these pieces?

Ebonite Tidal Wave Wipeout
Track Freakazoid and Xception
Columbia 300 Aftershock pearl
AMF Velocity and Maximum Velocity
900 Global Break and Bank

Rotogrip = Saga
FaBall = Black Hammer, 3D Offset
Storm = Virtual Gravity
Brunswick = Danger Zone original
Ebonite = TurboX
Motiv = Jackal Ghost

Pre urethane:
1. Manhattan Rubber
2. Brunswick LT-48
2a. Columbia300 Yellow Dot

Urethane era (pre dynamic core):
1. Columbia300 Black U Dot
2. Columbia300 Slate U Dot

Urethane era (dynamic core):
1. Anything Faball
2. Ebonite Black Turbo
2a. Ebonite Blue Nitro

Resin era:
1. Brunswick Inferno
2. Columbia300 Outrage
(Several "runner-ups", including Blue Thunder, Granite Gargoyle, and B/G Centaur)
3. Ebonite V2

Roto Grip: Cell, Totally Defiant
DV8: Grudge Hybrid
Brunswick: Mastermind Intellect, Mastermind Einstein
Ebonite: The One
Track: 505C

These are only the ones I've really, really liked. There has been lots of pretty good ones across the brands. Just not quite up to the level of those listed above off the top of my head.

900 Global: Break Point
AMF: Bone XS
Brunswick: Black Rhino
Columbia: Eruption
DV8: Diva Divine
Ebonite: Firebolt S/O
Hammer: Black Hammer
Motiv: Venom Shock
Roto Grip: No Rules Pearl
Storm: Hyroad
Track: Assassin
Visionary: Raven

AMF Angle Evolution
Brunswick Python
Columbia Rock On
Ebonite Red Mission
Hammer Viscious
Lane 1 Pink Panther
Motiv Venom Shock
Roto Grip Uproar
Storm HyRoad
Track TKO Punch

Good question, I'm gonna have to think about this one and report back.