Spiders scare me. But I do like Huntsman Spiders because they kill cockroaches. What kind of spiders do you hate or like? 
Tarantulas! they are an invertebrate that relies on an exoskeleton for muscular support
I've seen those in pet stores.  Do you have a pet Tarantula? 
I know that for the most part they arent dangerous to humans, and some are popular in the pet trade but i am deathly afriad of them
Oh, I guess you never had one then. I think they are ok but they don't have much utility. 
just a regular air-breathing arthropod that have eight legs?