sounds like me when DOA vanilla was out, loved the game but there wasn't a single character that i felt a bond with ( i was playing gen fu, tina, and helena at the time). It was so bad that i actually dropped DOA 5, and i fucking luv DOA!
eventually ultimate came out and i was playing ein, who was actually my main in DOA 2, and rachel, since i figured that i would do better with a new character. and even though i had more fun with those 2, i was still mad uncomfortable with everyone i played with, and it made playing the game feel more like an obligation as opposed to something i did for fun
but then nyo was released, and from her trailer i was like "she looks fun, i'll give her a go" and then i started playing with her, and something just clicked, i couldn't tell you what it was, but something about her just felt so right and in tune with the way i wanted to play the game
I guess what im trying to say is that maybe you just haven't found your character yet, and it may even be someone you never expected. cause believe me, i was shocked when i started playing this game and none of my old mains or old subs did it for me. who knew that i eventually find myself with a character who i've ignored since 1999. certainly not me