Yoda event: jedi squad

Barriss Offee, Old Ben, JKA, Mace Windu... I would go with JKA probably since you already have 2 healers on your roster. He's pretty easy to farm too (3 hard nodes + 1 cantina node).

Depending on your level and what cantina nodes you have unlocked. Best would be leveling the Jedi that arent trash pandas and that you will use in the future. So Barris, Anakin, Ima Gun Di, Ayla, QGJ. havent tried it back when the event used to be hard, but at the moment even the 7 star one you can beat with any setup, though again i would suggest getting the stuff that can actually be usefull in the future. I went with Barris, QGJ, Old Ben, Mace and Eath, and it was still piss easy. If you are in a real hurry and already have the 4 slots, just get eath koth i guess. He is a waste of space and credits but you can get him really fast.

My plan is

• Anakin
  
• Aayla
  
• IGD
  
• QGJ
  
• Lumi
  

Barriss is not as useful after the GW rework. It's more like 12 Arena battles, and she just doesn't hit hard enough. Focus on Lumi, and maybe develop Daka as a dark side healer over Barriss. Daka's stun and revive are more useful.

The most useful jedis of the game currently are:

QGJ
Aayla
Anakin
IGD
Old Ben
Barriss
Luminara

The problem is that some of these Jedis takes a long time to farm/gear/mod. Aayla, Anakin, Old Ben and Barriss compete on cantina battles. IGD have a very slow farm on guild store (and compete with Rey and JE). You can replace one of then with EK, but it is a waste of resources.

I honestly do not think Yoda worth the investment.

If there comes a time that you have reached your goals with your highest priority heroes, you could farm more Jedis to increase your squad options without "guilt".