I'm only saying that this spike was modeled after the 80s spike.
Plus, besides the purple body, spyro and spike really don't look or act much alike. Spike walks on two legs, but spyro's on all fours. Spike's wingless AND hornless, but spyro isn't. And besides, spyro's top spikes are yellow, not green.
Just disliking a character, because they look similar to another (even though I don't see it here with these two) is silly. I thin both dragons are awesome, and cool in there own way.
But if you still don't like spike, that's alright. I'm not trying to be mean or anything, so sorry if I cause any hard feelings.
For real? It's your own opinion, but it's not a very well-thought-out one. Spike is every bit as loyal as Rainbow Dash, maintains an optimistic frame of mind while being treated like crap by his only friends and family, works his ass off every day despite being a child, and only cared about Twilight after he helped save the Crystal Empire. He's anything but a selfish jerk. He had a few derpy moments, but there are just as many when Rarity, Twilight, Pinkie, or Rainbow were just as bad, if not worse.
Well that's alright. While I do like the character, sometimes it is hard to root for him. Though every character needs a flaw. But it's all opinion based, so it's okay if you aren't a fan. We all can't be.