>>89851889if a character is not even a little bit obnoxious to fight, the matchup is either 8-2 in your favor or the char is just dogshit (and the matchup is 8-2 either way)
but i can guess you're thinking about characters that force a certain playstyle on the opponent. Obvious case : zangief in sf2 or alpha3.
You're normally incentivized to attack and press your opponent in fighting games, with the timer and whatnot, but you can't against zangief because SPD and Lariat are just that good. So you're forced to push him away and decentivized to engage with a part of the gameplay you normally engage with.
The lesson here is: the more a character deviate from the average gameplay loop of a game, with non-standard tools and the like, the more you will hate it (not all characters feel as obnoxious game to game, see Daimon in 98 and now)
so, to make a character that is fun to fight, you need to make a game with characters all possessing a lot of very different options
pic related