I say Grogu heals Greef Karga's arm was the best

I would say Grogu because the time period has most believing the Jedi/Sith/the Force is a myth and witnessing the contrary blew their minds.

Misclicked. I thought Anakin reviving Ahsoka was the most interesting of these four.

Best force healers

Grogu healing greef carga In the Mandalorian season one chapter 7

Rey healing vexis and Ben solo

Ben solo healing rey

Anakin healing Ahsoka was an obvious choice considering Ahsoka is a major fan favorite even if the fan likes Rey

Anakin. The fact that Force heal took the Chosen One and the final strength of a dying Force entity established the power an epic feat, one that couldn't be used casually.

Of these, Grogu. It had mysticism and pretty much weakened Grogu afterwards. Plus lead to a characters moral compass finally kicking in.

The others were all more get out of jail free cards narratively. Heck, one is basically endorsing Anakin kill one (meaningless side character) to save another (central protagonist).

Overall though. I prefer the Healing Trance aka Hibernation Trance of Legends and Jedi: Fallen Order. Of which, the first time Luke does it to Mara Jade on Nirauan is probably my favorite.

Best fanart I've found of that scene. At this point Luke and Mara have finally gotten over their problems and were falling for one another but Luke was too scared that he was bad luck and would get her killed like some past love interests of his (something that annoys Mara though she won't admit it), when she gets shot by a hybrid of a gun and blaster that blows a hole in her shoulder.

He tells her healing trance can but not always be more effective than bacta, as the trance knocks her out she kinda sarcastically remarks she really Hope's this is one of those times. Anyways a child who is with them thinks that Luke's "beloved" just died, Luke has to reassure the kid that she'll be fine. Luke kinda mulled that thought over and on impulse gave her a get well kiss that might have been more. (Technically, in fairness, Mara definitely wanted Luke at this point, but he had been driving her crazy with never being available when she wanted him either emotionally or with other women... it so drove her crazy she let him think she and Lando were dating just to rile him up and get some payback)

Mara Jade's injuries took 5 days to heal, and Luke had to guard her that entire time, dealing with his feelings... plus a force vision that still didn't happen yet that forewarned Mara Jade shortly thereafter dying from drowning. Anyways, I loved that healing trance weren't quick fixes, as I see them working much better with the Prequels than any of these others. As a slow acting healing trance obviously couldn't save Padme from dying in childbirth in a era were medical droids could stop that too, so obviously it had to be something very quick neither trance or droid could fix.