Customers haven't been really pleased with mainline FF for a while.

This is tough

1. More than likely FFXV

2. About equal I'm guessing

3. FFXV definitely

4. FFXV

5. No idea, XCX has more potential in what the story is offering like dwindling resources, but the execution is what matters the most. Equal for now.

6. I suppose XCX overall will unless it will allow for beating the game quicker like FFXV.

7. Equal

8. XCX probably

9. FFXV has the most potential in it overall and it's taking a simpler story approach which is always good for a JRPG.

10. Day 1? Maybe, I don't know yet about either of them.  They're definitely the two games I'm anticipating the most right now.

For the story, I'm expecting Xenosaga/Xenogears level here. The original Xenoblade was originally not a Xeno game, and while Takahashi still probably had high motivations with the game, he was still pretty limited by Nintendo, most likely. It seems to me as if from the start this game is trying to live up to the Xeno-series, and they're given the freedom and resources they didn't have with SE or Namco, or previously with Nintendo. I'm hoping for the best Xeno story yet.

1. Will Have The Bigger World? xeno....

2. Will Have More A Depth Feel to It? final fantasy...

3. Will Have The Better Combat? will ff15 be party or single? if party then xeno.... if single.. you know what I think xeno

4. Will Innovate better Gameplay? ff15

5. Will Have the Better Story? tie

6. Will Take Up Most of Gamers time? ff15

7. Will Have The Better Enemy Designs? ff15

8. Will Have The Best Sidequest? ff15

9. Overall Better Game? xeno

10. Will You Get Day 1? both if I have ps4

FFXIII was underwhelming but overall I and many people thought it was an improvement over FFXII ... 

Now it's spin-off series on the other hand such as FFXIII-2 and Lightning Returns is probably worse than FFX-2 ... 

I wouldn't exactly say that the customers haven't been pleased per se but for all the hate it got from the critics part, it also received a decent amount of passion. FFXIII wasn't the game we wanted in the end however, it's the game we needed ...

I think 15 will win in every department aside from character customisation and possibly side quests. Im also worried that 15 has more planned entries which could lead to withheld gameplay an story etc

1. Will Have The Bigger World? (In Actually Traveling Land Size) Xenoblade
2. Will Have More A Depth Feel to It? (Talking World, as in Landscapes/Citys/etc) Final Fantasy XV
3. Will Have The Better Combat? Final Fantasy XV
4. Will Innovate better Gameplay? Xenoblade (because of dolls)
5. Will Have the Better Story? Final Fantasy XV
6. Will Take Up Most of Gamers time? (Replay value+Longevity) Can't decide
7. Will Have The Better Enemy Designs? Final Fantasy XV (I like what I've seen so far)
8. Will Have The Best SideQuest? Final Fantasy XV
9. Overall Better Game? I expect Xenoblade to get better scores (exclusive hype) but I expect myself and most to prefer FFXV
10. Will You Get Day 1? Depends on reviews

You forgot

11. Will have better music? Final Fantasy XV

You seem to either hate Xenoblade or overrate FFXV! The track record of FF is not good. So based of their latest FF games I don't understand why anyone is even hyped for this game. Also the modern setting of FF turns me off immensely. I prefer either a historical setting (fantasy allowed of course) or a sci-fi setting. 

@Bold Not true at ALL ...

FF XIII, its spin-offs and FF XIV were pretty bad to me. 

The best recent FF I've played is Bravely Default. And even that game had its fair share of problems (uninteresting story, boring cutscenes you couldn't skip and completely pointless second half of the game).