I have both and played a few hours of each. After finals I am playing Xenoblade X right away. So I guess that answers your question. ;)

Fallout 4 by a mile. XCX looks boring.

Xenoblade Chronicles X!
Okay, I haven't played either yet, but I loved the first game on the Wii. My experience with the Fallout games so far has been more lackluster. Not bad, I just couldn't get interested in them as much.

ive only played Fallout 4, and dont get me wrong i liked it, it just wasnt...i dont know, new? I only own a few console RPGs compared to handheld so I think I would like Xeno,

Neither of them, I liked the Fallout series more when the games didn't look like FPS, while Xenoblade Chronicles X's combat system is similar to the one in the first Xenoblade, whose mandatory use of auto-attacks made me drop the game after 5 hours.

Xenoblade CHronicles X hands down. when i play the game i feel like im in the most epic adventure ever

Hours put into Xenoblade, 103
Hours put into Fallout 4, 0

How are you playing Xenoblade chronicles? im preatty much veteran on xenoblade chronicles and i preatty much never let my character auto.attack, then fun part comes when you trying with combos and strategies

Fallout 4 without question. I'm still playing after several hundred hours and planning my next replay (when mod support arrives). The main story is just a framework intended to tie the excellent individual stories of the Commonwealth to the main character. There is some really good writing here in the form of modular, self-contained instances and it's fun to explore that.

XCX, on the other hand, has my least favorite style of combat in a JRPG and it features mecha, which I generally find boring and lame as a plot device. Plus, I really didn't think very highly of Xenogears back in the day. Not a fan of the artstyle, either.

Xenoblade Chronicles X for me.

Fallout 4... Nothing much to say about it, really... I prefer its predecessor than Fallout 4.