Well, the short, ultra-abbreviated answer to that question is “Mostly heavy bombers AKA strategic bombers.” But eh, what fun would it be reading a military aviation article consisting of a measly 15 letters? In the world of intra-service rivalries (not to be confused with interservice rivalries), fighter pilots tend to get more glory, but bomber pilots always have the comebacker, “Fighter pukes make movies. Bomber pilots make *history*!”)