Bro was near full health he can tank all the reversals in the world, Jimmy was one hit and he chose to give up corner pressure to risk it in the neutral.
Whatever character makes you happy is the right answer here the majority of the player base myself included is not someone who is going to be competing or making content, so have fun and enjoy learning multiple characters. As for a start anyone of the shoto characters are generally easier to pick up. Ryu and Ken are a great start if you are a beginner.
