You know me keeping GC great

Big Red is definitely not regional unless by “regional” you mean Americas only.

I've seen Big Red but never any of the others

I’ve seen Big Red & Big Blue the most the others are hit and miss whether you can find them.

I'm sure if I actively searched out soda like in the Loop or whatever I could find some of them I just mainly only see what's on the shelves at the grocery store or whatever as I walk by lol

Some of these are more common in convenience stores. I’ve never seen packs only singles of some of these.

big pharma

This poll is too big for my mind to comprehend

Yes, it's manufactured in San Antonio (my city) and is popular with barbacoa tacos(Mexican food)
Big red > big peach > but then it's just not big anymore because
fanta pineapple and crush orange are better.
And big manzana is shit compared to manzana sol.

Dr.pepper owns the company. So regional idk.

We're more a Vess or Fitz's soda land here

Shame on OP for forgetting his roots