I am not sure about the European models, Swaro and Ziess... but will place my money on Nightforce..

Personally have had a Leupold VX 3 1/75-6 on 2 of my 416 Rems for 16 years now..no issues what so ever.. had a Leupold VX-3 4-14 on my 300RUM or 12 yrs..no issues.. even after flying to Africa, they would be still on target.. switched them out for Swaro's and Zeiss.. have to readjust every time now.. so, while they have good glass, NOT impressed by their mechanical ability.. had a NEW Swaro go back in 27 shots off of a 26 Nosler...

I plan to put a Leupold Mark5, first focal plane on my latest LR rifle.. from those I talk to, what I read, pretty good bang for the buck.. still around $2000, but worth it if they hold up..

Not trying to be real down on Swaro and Zeiss..I probably have a dozen of them put together..but NOT that impressed by them.. each to their own.. if you like them, I'm happy for you...