I prefer single-player but play multiplayer if i think it fits the game well and it's just a tack-on. Tomb Raider really didn't need it. I really enjoy co-op too.
Xbox One, PS4 and Switch (+ Many Retro Consoles)
'When the people are being beaten with a stick, they are not much happier if it is called the people's stick'- Mikhail Bakunin
Prediction: Switch will sell better than Wii U Lifetime Sales by Jan 1st 2018