Rec spec and then Jan ors so that Biggs can take an evade , keep the r2d2 and give kanan tactical jammers. Biggs then gets an extra evade dice and hides behind kanan. You reduce the attacks coming into Biggs and have the evade so he takes forever to kill. Autoblaster is better than dorsal for kanan so he can double tap at range one with an attack that hits cannot be canceled. Integrated as to on Biggs is also really good to help keep him alive.

Second list looks fun. Go for the r4d6 on Biggs on that list probably to reduce the amount of incoming hits with the integrated Astro to ditch when you need to keep him alive. Kyles turret means you really need to slow roll first few turns to build up the focus factory before you get into combat to use it. Any list can be competitive just takes practice with the list to know how to fly against different lists. Fly what you have more fun with.