I prefer Coke to Pepsi, but I also prefer RC to Pepsi. As others said, “Pepsi is too sweet”
But I am not one of those who won’t drink Pepsi, if that is what’s around.
I rarely drink pop if I can avoid it, but I did once like the orginal Coke with sugar. Anything with HFC is piss.
I really really like Pepsi Max. It also mixes well with Crown. Its the only Pepsi product that is a decent mixer IMHO though.
But yeah, Pepsi Max is my favorite soft drink ever. That and Fresca and Big K Diet Ginger Ale.
Really, no lie.
For regular soda, I prefer Coke. Cherry Coke, especially. For diet, I prefer Pepsi.
At the moment, though, I’m on a bit of a root beer kick.
Where is the “fuck soda pop” option?
My preferences go, in order,
RC
Pepsi
Local generic brand
Coke
Almost anything else, including water
Diet anything
In practice, I usually end up drinking the generic brand, because even though I like Pepsi or RC better, I don’t like them enough better to pay twice as much for them.
I guess I can’t talk because I like Marmite!
Anyone who doesn’t drink Pepsi is a philistine, plain and simple. PHILISTINE I SAY!
*although, I agree, if you’re gonna mix it with rum or whisky, it’s gotta be Coke.
Pepsi in cans,
Coke from a fountain.
(Usually I go with a 7 Up/Spite/lemon-lime, root beer or lemonade before cola)
So I didn’t vote. 
In the distant past for a month or two (in the early '80s) I preferred Pepsi, but I think that was just a desire for variety. Before and since it has been Coke all the way.
Huh…I was unaware that such a large percentage of Dopers suffered from this terrible, terrible mental defect.
I know! Pepsi is so clearly a superior product!
I agree with this list!
I voted for Coke. I am not militant about it, though - I think Pepsi is good, and will drink it if Coke is not available.
Generally speaking - Pepsi. I like the sweeter taste, and seems less carbonated than coke to me.
But when kosher coke is available (it has a yellow cap, and it is made with sucrose, not HFCS) - I get a bunch of 2L bottles of that. It has a different sweetness profile that I like - it is sweeter up front, but doesn’t leave an after taste like HFCS does.
I’ve found that some generics (Rally cola, for example) actually taste more like the sucrose based Coke - and its available year round.
So, if I had to order things, it goes:
- Mtn Dew
2a) Pepsi
2b) sucrose based coke
2c) Rally cola - Coke