Well I would prefer a combo of both but if I had to pick one Railgun. Explosives would always be used and Railgun is really better for big ship to big ship combat. Laser provides a more or less infinite ammo supply for defensive purposes eg missile take down and smaller ship take down.
Captcha: deeply safers kinda coincidental with the less explosives thing.
Captcha: deeply safers kinda coincidental with the less explosives thing.