TBH as long as it's wet and warm I don't care what it is.
(you had seen that coming, didn't you?
On topic: I'm a huge fan of coffee. I tend to drink french coffee when at home or at work, mainly because I can produce it in quantities adequate to take me through the day (~4-5 large cups) or night (2-3 large cups). When I feel like quality coffee, I go with some cold Italian coffee (a cafe by my old workplace made teh best freddo capuccino i've ever tasted, and I've been to Italy on a couple of occasions...) or the traditional Greek offering (Greek/Turkish coffee). I used to drink tons of what we call "frappe" coffee, which is a total hazmat thing if you ask me but tourists and youngsters seem to really like it...
FWIW all those Wendy's, McD's, et al. coffees fall in the same hazmat bucket... which isn't totally bad if you don't have a choice and need a caffeine shot, but should be avoided otherwise.