Who is the easiest and broken character?

Guys, I had an idea and wanted to hear your opinion :

I'm a new player in Tekken, and this is my first fighting game. I currently have 60 hours in the game and recently reached Fujin rank for the first time. The only character I've played since I bought the game is Reina; I've never even touched another character until I got Fujin with her.

What I need to learn to keep climbing is pretty obvious to me (literally everything), but before I start focusing on learning more about Reina, I want to run an experiment: I want to see how far and how quickly I can climb with a strong and easy character. I don’t feel like there are any overpowered characters, especially since I’m in low elo, but I’d like to hear your thoughts on this.

Which characters do you think would be interesting to use for this experiment?