I fish a bazillion brands but I do find myself reaching for Yamamoto, Jackall, and Molix the most.  Used to fish a lot of Roboworm but now they're mostly collecting dust since I always get the feeling the fish have all seen Roboworms 100x over since they're so popular.

For me I now buy soft baits based on color and size and I consider all the major brands as being plenty good. I doubt I could just fish with one since I love a few baits and colors From Culprit, Gambler, Z-man plastics are a different breed, Zoom, Stike King, GYB, Netbait, and then some baits from Larew, Lunker City, Stanley Ribbits, Lake Fork....I have too many...

Gun to my head to pick just one?  Rage Tail -- And favorite Rage Tail?  Cut-R.  I just went through my plastics yesterday...took me about 8 hours to sort, organize, thin out (I was able to part with about 3 packs out of nearly 50 pounds...lol)...I think its safe to estimate there's over 30 different brands there

But, if I was forced to give up all of it and keep just one, it'd probably be Cut-R....would come up a little short as a jig trailer or drop shot bait, but I could probably make do for most other applications.

My main two are Rage Tail and Creme lure.Craws ,Bugs and Worms.

For my go to confidence plastic would be a Strike King 4.5 inch coffee tube. It has caught so many fish for me, I always have one tied on. But like a lot of people said, it's hard to pick one brand. Culprit, Reaction Innovations, Rage Tail it's hard to pick just one. I recently picked up some Missle Baits, the D stroyer and D bomb and they look great!!!

Zoom and Reaction Innovations

 

Zoom and yamamoto are the soft baits i use the most..

GYCB

Zoom Super Flukes.Zoom has several baits I fish and they're all good.GYamamoto is becoming a favorite but they're more expensive and tear too quickly.I still use culprits occasionally also.and producto tournament worms.

Zoom, zoom baby brush hogs.

Gambler and Kicker Fish. 

Rage Tail Baits

I fish all of them. These are my top four: Baby Craw, Structure Bug, Cut-R and Menace.

GYCB: Senko, Fat Ika, Kut Tail and Kreature