I voted I love to give it - not bragging, but I just finished a particularly intense oral session! But I know for a fact that my wife would also say she prefers to give as well - so we're both winners!
I love both, but if I had to choose, I'd be the receiver. My boy vastly prefers sex to head, so blowjobs are mostly for my sake. I, on the other hand, need head.
I like them both, but I'd be inclined to say that I would kind of rather receive than give, just because I give every time my partner and I have sex, but don't always receive. I guess it's a given because we're monogamous and I'm on the pill, but we still use the pull-out method as an extra precaution and so our sessions always end with me giving oral anyway. It makes giving less of a novelty.
I love both, but if I could only do one for a whole year, then I would choose receive as I have more options to work my wife over than the other way around...
Up until a couple months ago I would have said giving, I loooove pleasing my partner. However, my most recent partner has the most amazing tongue ever and likes giving even more than I. Guess I'm just lucky