MPC-HC was always my go-to. Starts up instantly and the performance was always superb, much better than VLC in seeking. I don't know what it is, but more often than not, VLC pauses for a moment when seeking to a random part of the file, while MPC-HC has always been instant. I suppose I'll try out MPV.
VLC in a nutshell: Rebuilding fonts... Fortunately, I believe MPC-HC will still likely be updated if necessary, or forked and updated if need be. I know I haven't updated mine in years and haven't had any problems.
I wonder if this is still a problem (I haven't used VLC in a while.) That message box is shown when fontconfig rebuilds its font cache, but libass has been able to run without fontconfig since 0.13.0 (October 2015.) I guess it depends on whether the current release version of VLC still needs it.