Sometimes it's a matter of just practicing until the game becomes fun, but sometimes a character fits your preferences and instincts and habits and it just 'clicks'
So who was it for you? What character best fit you?
Personally? I think Hakumen in Blazblue CS. It felt like the correct mix of tools and frame data and gambles that paid off. The game hadn't added 20 new characters and new systems and i felt like i found a groove. I was objectively better at CF but the lack of English dub meant the character never felt like the one i fucking loved.
Runner up is definitely Marisa in Street Fighter 6. I just love her toolkit. The armor. The parry. The command grab. The unconscionable damage. The lack of a Drive Cancelable low. All of it combines for this big, slow, high dmg punish machine. I have to play patient neutral to start her up, and play solid def to keep her alone, and then when she hits, it's scary. When i guess right, i am the smartest man alive for a brief flickering second.
You can probably see a pattern between those picks lol (high dmg, low walk speed, parry, no projectiles)
Why the El Fuerte hate? I played 4 but he was never at the top of my hated characters list
At high levels of play he was a pure guessing machine, his moves were too fast to react to and you just had to guess left right or throw. He took insane skill to play at that level but his design was just broken.