Seems like a very personal decision that depends on a lot of factors.
I went on my first guided hunt last year and my guide used the 65. I was impressed with it, and he is a fan of it for how it fits in his pack.
After looking through his swaro, I decided to upgrade. I ended up going the atx route because I don’t want to spend that much and feel like I’m still missing out knowing the atx is out there (i.e. I don’t want to buy another one). I was all set to go with the 65 objective but switched to the 95 in the end. My big reason was that I wanted the best for digiscoping and all of my hunts in the foreseeable future will be with somebody so space isn’t as big of an issue.
I love the atx because I still have the option of adding a 65 in the future. I’m not sure I ever will though...the 95 is amazing.
From all the looking that I did, I think if digiscoping is a primary thing you want it for, go bigger. If the space isn’t an issue I’d go bigger. I don’t think the weight difference is that big of an impact. For me, it was worth it to go bigger.
You will be happy with either one...