JC is very underrated. He has a very quick cooldown which allows him to heal more throughout a battle than Barriss - even before her nerf. His basic has a chance for -1 on all his cooldowns. I have his heal special at level 6, which is where you get the -1 on the cooldown. This takes it to just 2. It's not uncommon for him to heal, hit next round on his basic - which resets his cooldown -1, which then enables him to heal again that next turn. So 25% of the time his heal will have a cooldown of just 1...and the other 75% will have a cooldown of just 2.
He's just not spectacular at anything so he's easy to overlook, but he's pretty solid at everything. In PVP I'd say for sure JC I like over Barriss, especially 4/5* Barriss if she's stuck there and I've faced other 6/7* Barriss as well and haven't noticed a material difference in her performance. I don't think you'd regret building JC anyway. I haven't to this point at all. He keeps getting better for me - that -1 cooldown on level 6 for the heal special was a big lift in utility.
