I love my fives, but agree that he is OP. same is true for Kylo and his counters. these toons have way too much HP.
problem is ppl only look at basic damage and say they do no damage. they don't consider additional damage from specials, speed downs, cooldown resets and counters which increases their average dps more than you would think at face value. now with huge HP it is glaring as fights are much longer
ie try a one on one with Kylo or Fives vs QGJ or Rey. Kylo/Fives will come up on top 100% of the time with green HP! sure you can kill them if you spam stun them but that is true for any character in game,