Oy oy, Rita Repulsa wasn't "that" bad of a villain. XD At least she was a moderate threat and did some decently evil things back in her heyday. Now Divatox on the other hand...
The villains in SPD were cooler because one of them was like this little girl that gets magically turned into an adult and there's this sort of weirdly sexual undertone to it and the other villain is some sort of robot cthulhu tentacle beast that mind rapes an adorably chubby robot girl. Shit was so cash.
Oh also if someone ones a REALLY good space game, I'd recommend Space Rangers 2 Reloaded/Reboot -- whichever is the base game + expansion. The translation's a bit goofy, but the gameplay is excellent. The game is mostly about this war between the four (five? I forgot) "good" races and the three robotic dominator races. Except the war is entirely AI driven so battle lines are constantly changing and the world freely evolves with or without your input. It's *damn* cool.
Hardwar is also great though on a much smaller scope.
SR2: R is on Steam and a million other d2d places so just find out who's cheapest (and do NOT get the boxed retail edition. It has problems). I don't think Hardwar's for sale though the devteam behind it released a patch that would turn the demo into the full game so you could alway do that.