I always hear bad things about Chevys, but I see BLM, NP, and Rangers using Chevys to patrol. Can they be reliable?

There must be a reason why they seem to be standard issue. I know standard issue isn't necessarily good from my military experience but they seem ubiquitous across most law enforcement/land management agencies. You'd think they'd pick the F150 or something.

Chevy truck/ SUV owners, how reliable and offroad worthy is your rig? Obviously you're biased, but I'd like to hear thoughts. Extra points if you've also owned Japanese brand offroad legends like Tacoma, Tundra, Land Cruiser, etcetera.