I've got a 2013 w/ 28k miles and we haven't needed tires so far. But just looking at the Yokos based on discount tire's website
the YK740 and the GO55s are the same specs except the GO55 has a 65k mile warranty.
The YK740 is $170 while the GO55 is $142. The YK740 is a discount tire Exclusive. (big whoop?) Don't get me wrong, I buy all my tires there, but it seems like they were just pushing you for a tire w/ a higher profit margin.
If the two tires are the same in compound, it doesn't seem to be a great tire.
See the GO55 review from tire rack here.
Tire Test Results : Testing Crossover/SUV Touring All-Season Tires: Evolution Improves the Breed
Comparing tires within the same UTQG of 740 AA, I find the Pirelli Scorpion Verde All Season Plus
That has a great rating based on the review
This is $165
On the same list in the review, but a little wider size is the Continental Crosscontact LX20
I think this fits, but the size is 255/55R20 whereas OEM is 235/55R20
The treadwear is a little lower, 680 not 740.
I couldn't find any Falkens in the OEM size, only 255/50R20 (there may be others in 18" tires)
The ZIEX CT50 A/S
@ $200 with a treadwear of 300, it's not likely it will last very long.
So based only on this data, and not any experience of driving on any of them, I would choose them in this order
1. Continental (better review, seems to be great for Dry/Wet)
2. Pirelli (slightly lower review than #1
, Better fuel economy, seems to be better for Snow/Winter)
3. Yoko GO55
4. Yoko YK740
As a comparison, the OEM is a 440 AA tire.
Of note, Bridgestone also makes a 265/50R20 tire
The Dueler H/L Alenza Plus
It's $198 and 800 AA. But no tirerack reviews unfortunately. I would put this on par w/ the Yokos YK740. It's probably a "better" rated tire than the Yokos, but the price is a premium because of the bridgestone name.
So take this for what you will. Hope it helps.