Great question! Really loved the Bioshock series, along with Bethesda FPSs (although they're not great, I rather enjoy the open worlds). Cyberpunk was great fun, although disappointing in a lot of ways. The Doom series is a personal favourite, although Eternal wasn't perfect, I really loved how the stories were handled in the previous two games.

For me, I like to seek a balance between story and gameplay. My big thing though is immersion, and being able to really understand the Universe the game takes place in.

Whilst not FPSs, the closest thing to Halo that I loved (Space-Opera shooters), the Mass Effect trilogy tops the list.