Depends on your plans. Looking at your current team getting daka would be best unless you plan on changing your team. I stopped daka after activating at 4* because I'm using a few Jedi so for me I had to get qgj.
Daka is a great foundation for multiple end teams that will help you in every aspect of the game except the light side battles. (And there are a plethora of light side heals available)
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Daka offers better quality of life for DS missions and more versatile. Her threat in Arena means she will be the first to be targeted.
That RNG part for res makes her a prime target.