You are surely thinking in the right direction with either brand. To make it simple for you, if there is a way you can compare them side by side (looking through them only) your eyes might like one pair better.
I have had the opportunity to field test most every brand of optics, and surely over 100 different models. You will pay for what you get, but unless you loose your investment you should never have to pay again.
One thing I have noticed, especially in recent years, is there is alot of brand out there that perform quite nicely right out of the box. Unfortunately, they dont hold up very nicely in normal hunting conditions and they will fail you when you need them most.
Everyones eyes are different. If you lined up 10 people and had them look through the two models you are interested in (not knowing which was which), Im sure it would be a divided crowd on which pair is clearer/brighter ect.
If they seem very comprable vissually to you, then it is true you cant go wrong.
Personally I have owned a pair of swarovski 10x50 for 15 years. They are the most durable and important peice of equipment I own. I feel for the types of hunting I do they are MORE imprtant than the weapon I chose to hunt with.
I DO NOT take care of my hunting gear, I buy it to use it and I use it mercilessly. First thing I did was throw away the box and lens covers. I have never used a lens tissue on them(although YOU SHOULD) wipe them with wool shirts, been dropped, (50 ft one time), lost in snow for two weeks, fell off top of moving truck twice and the only thing that has ever damaged them was being kicked by a horse. (They probably saved me from being lame till this day) That cracked the corner of one of the 50mm lenses. Astonishinly it did not effect the performance. Apparently the small corner of the lens that was cracked is mostly for light gathering. They did not get knocked out of allignment, they did not take in moisture. I finally sent them back to Swarovski last year (7 years after they got kicked) just to see what they would do. They were smart enough to know whatever the heck cracked them wasnt "normal use" (guess they never packed the back country of Idaho)however they did do the basic service, allignment check, replace some armor rubber and replace that cracked lens with another used (but not cracked and much less scratched than my other 3 lenses) lens. They did send the optics back with some complimentary lens tissue and a kind pamphlet on proper optic care.
So I CAN say personally that my Swarovskis have been unfailingly durable and they have helped me spot thousands of animals and do to this day.
Out of the two pairs you have it narrowed down to I think its win win situation for you.