Kingsfield 2 and 4 take top spot for me, calm and cool tracks I can listen to over and over. As good as the post mike wazowski fromsoft music is after a while the loud orchestral stuff kinda blends into each other and becomes quite grating over time. Its good ingame in the setting or boss fight but i dont like listening to it independently.
Older fromsoft music is peak and a lot of their older games are in my top 10 game music.
Kingsfield 4: https://youtube.com/playlist?list=PL7YuVu11Ud-JlvI3O7kqTS-gWNxgf5F0l
Armored core 1: https://youtube.com/playlist?list=PL48C29B22778C558A
Then there's the Nier replicant ost which dominates everything ever: https://youtube.com/playlist?list=PLTSayM5g0IpZB3XGGIHAbvZgJtqL6WN76
Dmc 1,3,4,5 and metal gear rising all good.
Silent hill and signalis if I'm in the mood.
Sometimes the morrowind theme just starts playing in my head when I walk around.
Excellent soundtrack to just hiking through the wilderness.
Morrowind my favorite soundtrack to actually get work done. There was an article about how Jeremy Soule designed it to be good, but not overpowering because of its repetition.