I believe a person's answer to this question depends largely on his affection for the sucking individual. If the sucker is a physical specimen and extraordinary in personality, etc., I think an electrified turn-on is automatically set in motion and the blow job becomes world shacking!
Perhaps my limited experience dampens the value of my opinion, but my ex-wife didn't service orally nearly as well as lots of males have. I have read accounts of females who sucked dick wonderfully in some guys opinions, so, perhaps, its like beauty, all in the eyes of the beholder.
But as for me, give me a hot dude, or I'll settle for my fist, thank you very much.