I'm almost positive this topic existed at one point but i cant find it in the search. That being said, I prefer PC gaming over most consoles. If you can run it on a PC you're just going to have a better and more customizable experience. Especially with the ability to use a joystick or controller for fighting games and the like. However there are games worth owning a console for like a lot of classic SHMUPS/bullet hell games, Bloodborne, Shadow of the Colossus, etc.
I'm a creature of habit and repetition so my favorite games are mostly old and Ive replayed them 20+ times. Top picks would be:
Deus Ex
Half-Life
System Shock 2
Quake, Quake II
Doom, Doom II, Doom 2016
Dark Souls I-III
Fallout, Fallout 2, Fallout Tactics, Fallout: New Vegas
eXceed I-III
DoDonPachi
Marvel vs Capcom 2
Samurai Showdown
Katamari Damacy
Been playing a shit load of PlayerUnknown's Battlegrounds with friends lately.