Agree with most of the above threads -- but it really comes down to Personal Pref., ego, and Reticle Choice/options/layout
As much as I don't care for Leupy - Their Mark 4 and 6 line have held their own...... Several of the TOP ones have had issues.........so no one is immune. So are they truly the best when people have issues and CS stinks???
So lets go with What have most been happy with: Bolt Action or LR Type Rifle Scopes
Overall One and Done = Nightforce NXS and ATACR, Vortex HD, SB, USO, Hensoldt, Khales, Premier, Steiner's newest T5Xi ??, BUSHY Elite Tactical XRS/ERS and HDMR, Leupy Mark 4 and 6, many happy with SWFA's SS HD too.
"Budget Belters -- Vortex PST, LR or HS-T, Bushy Elites, Weaver Tact???, Zeiss Conquest, SWFA, etc
PART 2: AR OPTICS
"Top Choices'' - Aimpoint, Trijicon, EoTech, Vortex, Bushy Elite Tact., SWFA HD, Elcan?, SB, Nightforce, USO, Leupy Marks......
From my experience with customer service on scopes, if you have a problem with a Hensoldt, expect it to either be replaced here or it will go back to Europe for repairs. If you have a problem with Schmidt & Bender, it will be serviced here in the US and I have only needed them once during the past 25 or so years.....earlier this year and they turned it around in about a week with no charge on an 8 year-old scope that had been used/abused and traveled with me for several thousand miles. Nightforce Customer Service is also located here in the US, and has been good to work with. US Optics is here in the US, and has been good to work with anytime I've had a problem with one of their scopes, even when I was not the original purchaser.
As for other scopes, Leupold was very good about CS until I sent one back to them in 2006 that would not "track" (scope less than 3 months old) and they wanted to charge me for fixing/replacing it. So, I have not purchased another Leupold since.
You indicated several scope manufacturers as having problems, but did you have actual experience with all (or any) of these?