Might not be your cup of tea. I was at my grand-father's funeral, just before last x-mas, and when I reached to grab the Coke, it was empty, so I went for 7up. Ended up pretty decent.
I'd have to say, my top five right now, in no particular order:
captain/jack/crown and coke
kamikazes
baileys and anything
gin and tonic (my dads favorite drink, rubbed off on me)
jagerbombs