Ideal Jedi squad comp?

I've been working on farming a lot of Jedi characters recently and my squad is getting pretty good. I'm wondering, however, who should I focus on farming and who am I wasting time with?

So right now I'm running like this;
Bastilla (L)
Kit Fisto - who gets surprisingly tough at higher rarities I'm finding
JC - my only seven star Jedi so far
Luminara - My only other 5+ star
Ahsoka Tano / Mace Windu - depending on who I'm facing I switch between them

So I know bastilla needs to be leader. I 'really' like kit Fisto especially with bastilla as leader since he counters almost every time. His double att is pretty reliable and 'my' kit has a 'ton' of speed added through mods (200 to 230 I believe, he atts twice per every enemy turn generally). So I suppose if everyone gets on here and says kit is a waste of time then I'll rethink but those two I'm pretty solidly sure I want to farm.

I just unlocked plo koon and got him levelled up to be comparable to everyone else. His basic att seems like it does very little damage and his buff/debuffs abilities seem rather inconsistent to me 'but' strictly on an overall power basis, he's actually ranked second among my Jedi toons (behind kit Fisto). Should I toss him in? If so who do I remove? Ahsoka / Mace is the obvious weak point, although ahsoka works almost as a second healer in my experience and is capable of dealing devastating dam as well. So if she's my second healer -esque toon, who gets the boot between JC or LU?
I also have eeth koth pretty well udgraded too. He's a ways behind my other Jedi toons ATM, but he is also the only one whos shards can be bought (squad arena store) which makes him 'much' faster for me to farm. I know Mace shards can be bought in shipments too, but honestly, I don't even use endurance in my fleet battles and Mace - having 'no' ability to inflict buffs or debuffs (basically no way to help the rest of the suad) is by far my 'least' favorite of Jedi I have unlocked no2 (yes; even behind eeth koth - at least EK has a reliable stun debuff...)

So who should I focus in on, now that I have a bit of selection?...
I should add that I'm working to unlock ima-gun-di as well but I have like 2 or 3 total shards for bariss and really don't want to 'completely' restart my farming for a new char who is only a healer (I almost NEVER even use healing with bastillas leader ability and only employ 2 healers as a redundent system "just in case" the enemy wears down my protection...

So the end game of all this is to have a team of 5 7star Jedi so that the next time the GMYoda event comes around I will get him for sure...