I've just bought the 801, been carrying it a few days and used it a fair bit for that time.
I have only looked at the online reviews and description of the 108.
My recommendtion is the 801, *if* my cursory glance is correct and the 801 is about $10 cheaper.
It looks to me like the 108 is mainly slimmer with a beta plus lock.
Personally I am fine carrying a plain jane frame lock and my 801 seems fine.
Now if that extra 10 got me a 3d sculpted, textured handle of a lighter material, so the balance was just below the pivot - I'd recommend that knife for $20 more than mine.
But as it is, the differences I can see after a quick skim are not worth the higher price. Granted I'm not going to research in depth simply becuse I like my 801 a lot and want to keep on liking it.
But the handle is smooth and heavy. I knew this beforehand. It's a damn good knife for what I paid. For $10 more, a knife with a similar handle is much less competitive.