Spider-fear has never been triggered by fictional spiders for me. Very few works ever bother getting the face and body right though. 8 legs alone are not scary for me, the fangs and eyes and color patterns and the sneaky movement and webs are scary.

I'm not terribly afraid of real spiders though. Hairy crawling spiders like wolf spiders and tarantulas don't really bother me at all. It's the ones with the big web-spinning butts that dangle and drop down from above that make me go straight into fight-or-flight.