I was thinking that FFG has shown how good they are at balancing their own game. All of this is "in my opinion" so if you disagree with this it's okay.
The following ships have received a fix. Even if it wasn't effective. -TIE Advanced, X-wing, A-wing, Y-wing and B-wing (debatable as they were both given titles), Starviper, Kihraxz fighter, M3A Interceptor, TIE Interceptor, TIE Defender, TIE bomber. I think a case could be made for a few other ships that FFG was targeting to be fixed such as the TIE SF (light weight frame), TIE Punisher (they've tried multiple times) and the TIE fighter.
The following in my opinion have received nerfs. - TIE Phantom, Jumpmaster, K-wing, and maybe a few others that I can't think of.
The following in my opinion need a fix. - X-wing, U-wing, B-wing, TIE fighter ( would like to see TIE swarms be competitive again) , Firespray, TIE punisher, HWK...maybe..., G1A star fighter, E-wing, Quad jumper.
The following I think are balanced very well. IG aggressor, TIE aggressor, TIE AP, Decimator, YT-1300-2400, YV-666, Lambda shuttle, T-70....maybe..., TIE striker, Z-95, TIE FO, I'm on the fence with the Wookie gunship but I'm leaning towards nerf that reinforce token, Shadow caster, Attack shuttle, ARC-170, the ghost, Sabines TIE, K-wing.
I've left a few out but this is the general picture. Kinda sad that most need a fix, have one, or have been nerfed.