What player do you use to watch movies through?

VLC, on windows and android. Simple, free and with no problems

VLC on ios, Win and android.
Using a Kodi box player for network streaming.

VLC, hands down. Its great for not only watching videos, but also for watching live-streams.

MPC-HC with K-lite since I watch a lot of foreign films and anime.

VLC Player, although the subtitles don't download automatically is is less buggy than the rest.

VLC here as well!

Light Alloy

SMPlayer since last 6 months. No issues at all.

Used K-lite codec and MPC-H classic for ages. Fully customizable so it's great to watch on

I've been using BS Player for years now, it's not the best one out there, but it does its job.