The characters of Blizzard's Overwatch are some of the most interesting ones you'll find in a MOBA FPS. They have unique designs, compelling backstories, and cool skill sets. But that diversity of abilities also lends itself to easily being spammed. Certain Overwatch characters quickly become the most vexing ones to run into.
While there are definitely various types of annoying Overwatch players, the heroes themselves can be pretty exasperating to fight. Naturally, characters ranked by annoyance is pretty subjective. Genji mains are likely to find somebody else bothersome, while Tracer players are likely to rank McCree high on their list. But players across the board can agree that some characters are more frustrating to fight against than others.