take this with a grain of salt
I sold optic's for yrs(had a gun shop)
of the one's you listed
I would go, Burris, sightron and vortex, and last the The Athlon
things I will say is this, Burris, used to always tend to be a tad heavier than others, the sightron's had some issues with edge to edge clarity, Vortex is a little newer to the market and didn';t sell a lot of them so, don't have much hands on, minus shooting some rifles with them and looking thru some at shows and shops
and have zero experience with the last one, and that is why its at the end of my list
others have been on the market longer and more proven track records!

NOW I would not know what model/power scope your talking here, but most of these scopes you listed are one's with target turrets, do you really plan to use them?
as in making IN field adjustment for yardage and returning things to zero again afterwards?
these target turret scopes do work VERY well when used right, but are more than many want to do, and they are also heavier than most other non target scopes, this matters to SOME< doesn't to others!
just asking and pointing this out
MANY of them above models are on 30mm or larger scope body's and or larger objective ends, which will then need f , HIGHER mounting, for most rifles,
which many don;'t like, as cheek weld can be harder for some to get comfortable with them! or need a higher cheek piece to feel like they want!

call this food for thought, NT trying to confuse you, just asking if you know/have considered these things

all the lines of the scope you listed are Higher end scopes and all should be very GOOD scopes and a HUGE upgrade from what you have now !
so not really a bad one there, I personally would shy away from the last one, just due to not as proven IMO as the rest there!
will they be there down the road or here today and gone some time later on<??
it happens in optic companys!


a key thing to remember in optic's such as scopes, is it NOT all about the glass, the internals are VERY important, and how accurately they hold a zero and return to a zero is a BIG part of a scope, and this is where a LOT of the price tag comes from(along with glass)
but all the high end glass, will never matter if things don't hold there own else where
good honest scope reviews done by REAL professionals are far and few
but there are some out there if you look
and they do them off rest and rifles and use standard procedures to test how well a scopes adjustments work and how accurately they move things and return things
Outdoor life was one magazine that used to do good tests every yr on a BUNCH of scopes of all sizes and price ranges! been two yrs or so since I last subscribed to there mag, but maybe others still do and or there online now??
be worth maybe looking into!

hope I didn;t confuse you more, just trying to offer honest information so you can make the best choice possible
let us know what you end up with! too