Nintendo: Mario, Link, Donkey Kong, and Pikachu. (Same as OP)
Sony: Crash, Spyro, Kratos, and Nathan Drake. (Spidey has only had one major exclusive game. While it was amazing. And spectacular. And ultimate. It's not nearly enough to put him on the Mt. Rushmore of Sony. Especially when there are many more names that I would put before his.)
Microsoft: Master Chief... That's pretty much all I got.
Hardware Comparison Threads:
Current Thread
Is Hardware Getting TOO Powerful?
Older Threads:
PlayStation/Xbox/Switch: 2022 Edition
PlayStation/Xbox/Switch Hardware Battle: 2021 Edition!
PlayStation 4/Xbox One/Nintendo Switch: 2019 vs. 2020
PlayStation 4/Xbox One/Nintendo Switch: 2018 vs. 2019
PlayStation 4/Xbox One/Nintendo Switch: 2017 vs. 2018
PlayStation 4: 2015 vs. 2016 vs. 2017