Roadhog and McRee are downright the most loving gay characters in the game. Having the chance to get a free kill every 9 seconds doesn't belong in a game like this. Widowmaker is a different story as you actually need skill to get a charged headshot. Not only that but when the two can cancel ults, its extremely frustrating.
That being said I find Reaper underwhelming because his shotguns have toilet range, and Roadhog, Mei, and McRee are easy counters (and they're on the enemy team 80% of the time)
So I've learned not to aim for the head but for the torso when playing Reaper