Here's an unbiased take on it:

Both games will be amazing. 

I think the best XV can hope for is to be underwhelming based on the hystory of Square-Enix. A look at their games like XI, XII, XIII, and XIV. Popular opinion would show most people think some are okay, while others are downright awful (the awful being XI, the XIII trilogy and the original release of XIV).

The people who hate Xenoblade are few and far between, with a lot either not knowing what they are talking about, or never really playing the game. X is destined for greatness.

Shawarma sound good?

Oh, I'm not unbiased per-se. But it is clear to the unclouded eyes that both games will be of the utmost quality, and I think it is quite telling when most of the people talking crap about FF XV are Nintendo fans. 

The way I look at it, is like looking at a football team. Sure I can look back and see how many amazing teams my favorite team had or reminice about the super bowls we won back in the day, but that was a completely different team.  Has zero effect on my team now.  What changed?  Are the players not as good now, are other teams just that much better, does management suck, ect.  Why does my team suck now.  And due to them sucking for that last 5-10 years, its pretty easy to guess they will suck this year too.  Who knows, maybe we'll draft some amazing player and he miraculously turns it around.

Now swapping terms for Final Fantasy.  The games used to be great, but now aren't so much.  We can reminice about their past games all day and how great they were, but that is not what we see today.  What changed?  Is it new dev's?  Is it managements or publishers screwing shit up.  Maybe the quailty of others games is just so much better that now Final Fantasy doesn't stand out anymore.  Who knows what the exact reason is, but fact remains that Square Enix with their Final Fantasy series is now a sub par franchise and has been for many years.  I'm fully expecting a sub-par FF15, based on RECENT history, not going back 15-20 years.  Things where so much more different back then, you can't compare.  

Thus same reason Xenoblade X is compared to Chronicles, versus any other past game that mauy have been good or bad.  Because its more recent.  Their recent track record is good.  They went ot the superbowl last year versus 20 years ago.  

The way I look at it, is like looking at a football team. Sure I can look back and see how many amazing teams my favorite team had or reminice about the super bowls we won back in the day, but that was a completely different team.  Has zero effect on my team now.  What changed?  Are the players not as good now, are other teams just that much better, does management suck, ect.  Why does my team suck now.  And due to them sucking for that last 5-10 years, its pretty easy to guess they will suck this year too.  Who knows, maybe we'll draft some amazing player and he miraculously turns it around.

Now swapping terms for Final Fantasy.  The games used to be great, but now aren't so much.  We can reminice about their past games all day and how great they were, but that is not what we see today.  What changed?  Is it new dev's?  Is it managements or publishers screwing shit up.  Maybe the quailty of others games is just so much better that now Final Fantasy doesn't stand out anymore.  Who knows what the exact reason is, but fact remains that Square Enix with their Final Fantasy series is now a sub par franchise and has been for many years.  I'm fully expecting a sub-par FF15, based on RECENT history, not going back 15-20 years.  Things where so much more different back then, you can't compare.  

Thus same reason Xenoblade X is compared to Chronicles, versus any other past game that mauy have been good or bad.  Because its more recent.  Their recent track record is good.  They went ot the superbowl last year versus 20 years ago.