There's some good advice here, thanks for everyone's input. I admit, our first (and thus far, only) space battle, I didn't include any kind of stellar terrain or anything because I just wanted to try to get a feel for how it worked basically, but the ships in combat with the PCs were tearing them apart, and the PCs had an Ace Pilot/Gunner in the group, but the pilot didn't get to do much as a pilot except get shot down. Maybe if I'd have thrown some "difficult terrain" in there, he could have shown off his skills better and gotten a more complete piloting experience. Will definitely look into that before we do another space combat!
But I was also thinking about maybe giving skilled pilots a bit of a bonus to avoid getting hit....for every 2 ranks of a Pilot skill you have, it adds a setback dice to the attacker. This would go both ways, of course, but it would give at lease some sort of "I'm harder to hit because I'm a better pilot" passive bonus. Does that sound too overpowered, given that it will work for both sides of GM screen?
Evasive maneuvers is the "Harder to Hit" pilot-only maneuver/action (don't have my book with me). So there's already something in there for the pilot to do to avoid getting hit.
And any combat where there is no cover or terrain to take advantage of is going to be quick: really quick if one side is outnumbered!
-EF
I know about Evasive Maneuvers, but what I was talking about would be a passive "bonus" to the pilot without having to take a maneuver or action. It's just a built-in modifier like defense or cover or anything like that that is just part of the difficulty to hit.