I think Cyclops would have to be very careful, but I don't think you can say Spidey would just beat the Hell out of him. If you're Cyke, the thing you need to look out for, of course, is Spidey landing a direct hit on you since he has super strength and you have athletic, but only human endurance. Your goal is to hit Spidey with an optic blast. To your advantage is that you have had years of practice in firing these things and you are pinpoint accurate. Spidey has great agility though. What I would do is to try to keep Spidey on the defensive, firing series of well timed short blasts so that he's hopping around constantly. Also I'd try to aim them so that the blasts positions keep him at a distance. If I could score one hit, enough to daze him for a second, I could follow up with a stronger blast and then the odds move strongly in my favor as he becomes less mobile. If we're talking fight to the death, then of course, I might rip off the visor and blast everything in his direction. All in all Cyke has to be careful but he can win. If you are Spiderman you've got to be nervous about Cyke's long range ability and constantly dodging blasts. Somehow you'd have to try to manage some offense, but to injure Cyke you've got to get close and that's what's difficult. You're not going up against some average joe villan or madman, you're going up against a highly trained and battle tested leader of the X-Men with a tremendous ability for strategy. It would be a great fight to see. Hopefully it would never happen since both are good guys.