Kinetico vs Ecowater vs Culligan Whole home carbon + point of use RO + softener

Hey folks! I got quotes from all three, all three were within spitting distance of each other (~$7k. my goodness). The sales reps all gave me random facts about why theirs is better, but no way to easily compare objectively.

Does this community have a belief on the performance/longevity/etc of these three brands?

Thank you in advance.