After so much time reading throughout the Legends, with truly so many, 3/10, extremely poor works, I have really learned to appreciate the EU Luke. Despite all these inconsistencies, so many books I would rather forget about, all the writers, overall, really managed to capture the spirit of OT Luke well. They developed him towards his sixties really legitimately, never going off the core of his character, never undermining the Original Trilogy, but going into an interesting direction nonetheless. EU Luke remained the good-hearted farmboy trying to find a glimpse of light in everybody. He remained the RotJ Luke fearing the Dark Side into his final days. He remained somebody whose heart is that truly of a real Jedi, and remained somebody who was, let's face it, taking a piss on so many lessons of his predecessors, and so many of their mistakes as well.
He wasn't perfect, at all. He was this guy who just tries to be perfect, to do the wisest stuff possible, the calmest approach doable. But he was still someone who fallen into the damaged Unifying Force-Potentium combo, which gave a nice struggle in the Dark Nest. He killed Lumiya in an act of revenge, and all of that.
What I truly like about Luke in EU is that he really is that shining star, that guy who most people will consider boring and dull iconic Jedi, that still fails, that still gives into fear or grief or rush, that's still human. Somebody that's super-hyper-extremely moral (to the point of being a boring fuggot maybe), but still a human being, without the writers just suddenly giving him a bad day. Nope, he's still on top of that moral mountain and writers just give him challenges great enough that he can have his downs while remaining on the top of this moral mountain nonetheless.
What really makes me appreciate the writing is that there are so many instances where he's just this most powerful Jedi, the absolute badass, the absolute power in the universe, but he's still not overpowered in terms of writing. He shits on nearly everybody, but stories involving him concern events so wide and complicated, he still can't just power his way through the obstacles. He gets involved in galactical conflicts where he can't just power his way through planetary defenses or be at two places at once. In NJO they really learned to make him all-powerful without making a story boring. In essence, they just keep pressuring the point that he's still just a one person. He can have the power of the black hole, but that black hole still can't fight an entire war or repair corrupt government.
I really take all of that over Canon... but how can that be a surprise?
In essence, Legends Luke kept being a main character. In Canon, he gets disposed of to get the story into Rey-Finn-Kylo hands. There's no denying this huge difference in approach. I won't debate how they handled Luke in TFA and TLJ, but the approach is obvious. You can't have a forced-out-of-the-screen Luke match the main-character one.