Out of the ones in poll Id pick Coke overall sure.
Never used to like Dr Pepper years back I like it now.
No Cactus Cooler here in AUS (unless special import shops) Never tried but defo would.
Another soft drink I dont mind is Irn Bru.
Its from Scotland
https://en.wikipedia.org/wiki/Irn-Bru
Cant really describe the taste,its a flavour if its own really.
I love the first line in the Wikipedia article
"Irn-Bru (/aɪərn bruː/ "iron brew") is a Scottish carbonated soft drink, often described as "Scotland's other national drink" (after whisky)."
A guy at my job is Peruvian. He brings in this purple drink (which I've been calling purple drank) that I'm starting to obsess over. It's called Chicha morada. It's basically made with purple maize (corn) and made with pineapple and other stuff. It's starting to be sold in my state's grocery stores, at least where there are higher Peruvian populations. That's why I love my state. It's a total melting pot so we get the best things from all cultures