I can understand revolvers still being in Sci-Fi, as cramming a more advance laser or plasma system into a sidearm system may be costly, and no one will laugh at a .50 caliber revolver at close range. Of course, I do not in any way condone using a sidearm as the primary weapon. Sure, a revolver would be a great sidearm for if your primary weapons run out of ammo, but I'd much rather have a portable particle cannon.
Edit: And what's with melee weapons still being used as a primary weapon in Sci-Fi? I could understand something like a combat knife with an ultrasonic generator in it for close-combat, but why stab someone with a sword when you could blast them from range?
Edit #2: And if this FF has an android party member, I'm gonna vomit. If I ever run into a machine that thinks its a person and suffers a personality crisis, I'm gonna put it out of its misery. Why have some whiny human wannabe when you could have a hulking engine of destruction war robot? It doesn't even need to be self-aware. Just slave it to me and make it so when I point in the enemies general direction and say "kill" it does what its best at.