There are alot of reasons why people don't like Cyclops. Just to name a couple, he's a teacher's pet and he's a whiner when it comes to women. But here are reasons he's quite the character. The majority are out of the Marvel Universe. For starters, Xavier enlisted him as the deputy leader of the X-men. He has disappeared a few times but has always remained that way. He is partially responsible for creating one of the most awesome characters around...Cable. Although he didn't really have a hand in raising him, its just in Cable's genes to be a great tactical leader thanks to dear old dad.
He fused with Apocalypse during "The Twelve" to save the X-Men and survived (down the road of course). I know alot of people die and come back but its still awesome. His dad is the Captain of the Starjammers. His brothers are Havok (who is cool too) and Gabriel. Even when powerless Cyclops managed to still lead the team and very well. He has a cool power that can punch through a mountain and if focused just right can put a hole through a nickel from a distance. And look at the women in his life. Yes he was with Jean Grey forever but in that timespan he even had Psylocke trying to seduce him. Plus he's now with Emma Frost. He put together a mutant island. And after currently reading Uncanny X-Men 517 (which inspired this), he really shines as team leader while fighting the Predator X.
Even Magneto followed his orders. That shows how much respect he deserves. Plus even without his powers he is a highly skilled fighter who can even keep up with Wolverine in a hand to hand fight. That's all I can think of off the top of my head. Now saying all this, don't look at the movie version of him. They did him no justice.