This is an honest question I am posing to the community. My friend and I have played about half-a-dozen games. He plays Imperials and I play Rebels. We have found Vader to be, well, lacking. Also, when I do theory crafting, Vader does not seem to really justify his 200 points. Let's break it down in comparison to Luke (who I think is awesome)
1. Courage (Vader - Infinite, Luke - 3)
This may seem like an easy win for Vader, and my guess is the Devs thought this infinite courage was worth the price jump to Vader, but I have two problems with this. 1. 3 courage is really high, and it's rare to even see Luke lose 1 action, let alone panic. BUT, there is a HUGE upside to suppression tokens: Cover. If Luke gets caught in the open (he should have a dodge), after the first attack (where he spends his dodge), he now gets 1 level of cover, something Vader never gets. In other words, Infinite courage is not a pure plus, it is a double-edged sword. I feel this is a push.
2. Health (Vader-8, Luke -6)
This may seem like a pure victory for Vader, and again, I am sure the devs are making you pay for the extra health. However, because Vader never gets suppressed, and thus never gets that bonus cover, he NEEDS the extra health to make up the distance with Luke. As weird as it sounds, I feel this one is a push.
3. Weapon (Vader - Melee 6 Reds Impact 3, Pierce 3, no surge, no ranged, Luke - Melee 6 blacks Impact 2, Pierce 2, surge to crit, Ranged 2 reds Range 1-2, Pierce 2)
At first glance, it may seem that Vader wins here with Red dice, again, something I think the Vader player is paying for, but it's not as good as it first seems. First, black dice with surge to crit are almost as good as red dice without surge. Yes, the Red dice are strictly better, but Vader has no native Ranged attack, but Luke does. I feel that Luke goes down to Black but gains a native Ranged attack, which is a fair trade to make. The Impact is a wash because with Luke surging to Crit, it's basically the same. The one true advantage Vader has here is Pierce 3 rather than two. For that extra pierce, I'd be willing to pay maybe 10 points (but then you need to pay 10 more points to get a ranged attack). I would almost call this a push, but let's say Vader needs to pay 10 just to be safe.
4. Abilities
Both have Deflect and Immune: Pierce, so that's a wash. What about the other two? Vader has Master of the Force 1 and Relentless, while Luke has Charge and Jump 1. Jump 1 is amazing, and combined with Charge and 2 movement speed, is really synergistic with Luke allowing him to pinball around the battlefield with ease. Master of the Force 1 seems awesome at first, as it freely refreshes your force cards, but if Luke is in the thick of things, he can easily refresh his cards with a recover action, and then Jump into melee and charge, essentially the same thing. The other problem is that Master of the Force suffers from NEEDING another upgrade to work, meaning it should be costed less than what Luke gets, as Luke can be 'naked' and still benefit from his abilities, while Vader cannot. Relentless is, on paper, clearly better than Charge, but considering Vader's movement (next area for discussion) I think this is a wash again.
5. Movement
Here we go, the Achilles' heel of Vader. Movement speed 1. This singlehandedly boot-straps Vader. I'm guessing the Devs were scared of Relentless being on a platform that could move 2 each move, and then hit with 6 reds, so they gave him move 1. This clearly is inferior to Luke, without question, and should give Vader a point reduction, minimally. I think 10-20 is fair, to say the least.
Conclusion: So what we get is a weird situation: If Vader was 160 (same cost as Luke), would he be OP? Would he be as good as Luke? I think he would be a fair alternative version of Luke. What do you guys think?
Because of all of this, I have created a 'fix' card for Vader, and wanted to see what your thoughts are:

Anyways, thanks for the help! Any suggestions for how to use Vader effectively, or your feelings on his cost are greatly appreciated! These are just my ponderings over the last few months.