Good Sci-Fi RPGs?

[Rakaydos]

I'll put Myriad Song in the running for it's strong Skill + Feat mechanic- however, the game designers conciusly moved away from starship combat.
"if you lose a fight in ground vehicals, you can just bail out and go to ground. If you lose a fight in space... what then? instant TPK?"

And the combat system is swingy enough that loss can happen (though you almost always can see it coming in time to run away) so making failure not be the end of the game is important to the system.