Feng Shui 2e is fun, but lacks Character Gen.
Let me expand my list, restricting to currently available in legit formats
- WEG d6 system (all 4 current corebooks)
- D&D 5E
- Cortex Plus
- Fate Core
- Mouse Guard
- WFRP 1E
- Better Games' Battle Born (were their Barony available, I'd go for it instead)
- Champions 5e
- GURPS
- FFG Genesys
- Car Wars
- BRP
Each has different strengths. Each appeals to a different crowd. Sure there's much overlap.
FWIW, All of the above I've played, save Genesys, but it's the generic version of FFG's Star Wars.