Played through, and this is pretty good. Luna is my favorite of the three, but in the question raised by MC towards the end of current content, Gracie would probably beat her in a fight. She seems a lot more like her mother in that sense, like she's got everything planned out before her opponent realizes there's a confrontation. Luna, like Gracie herself says, is a force of nature, but if anyone could figure out how to neutralize her, it's Gracie. Especially since MC already showed that it's possible.
Anyone else like the friend path with Isabel more than the Netori path?
Well in her current state, I wouldn't agree Gracie would be able to beat Luna in a physical one on one fight.
Yes, Gracie is one of the most intelligent characters in DeLuca universe, but her physicality is very much lacking at the moment.
So unless Luna gives Gracie an ample time to set something like an ambush or setting a trap (though if it comes to that, I wouldn't actually call it a proper fight lol), I'd say Luna would win most likely if for example both Luna and Gracie are thrown in a fight against each other, with no preparation from Gracie's end.
Basically Luna was taught by 2 of the Serpents, Cynthia & Gottardo (mostly by Cynthia, and one or two moves by Gottardo), and I think difference in their physical level at current state is far too great at the moment in Luna's favor, considering Gracie had...... no training whatsoever.
However, if Gracie decides to train for real in physical combat and learns from Cynthia and Gottardo like Luna did, they might be on more of a even field then (even MC notes in that Portend event that Gracie is a fast learner and should she set her mind to physical combat training, she could be a scary beast).
In that case, it might be a toss-up in terms of whether Luna's battle/fight experience (which she has ample amount more than Gracie) & unpredictability triumphs or Gracie's applying of her brains to her fighting (to make up for her lack of fight experience) does.
While I like Antonio, I dislike missing out on content more (since by picking friend path with Isabel the player misses out on the Netori event. Only one at the moment, but my guess is this number will increase with more Isabel updates in the future), so in all of my playthroughs, I always chose Netori path.