Prepared to be crucified but....anything by Iron Maiden!
I guess I get it if they were your gateway metal band and what introduced you to metal. My gateway metal band was Metallica though and they did everything bigger, better and were 'cooler' as far as I'm concerned.
I compare it to my thoughts, growing up, on sci-fi. I was a massive Star Wars fan (still am). I lived and breathed Star Wars. It was cool as fuck and just epic. Then there was Star Trek...
Star Trek (in my head) was just inferior, kinda lame and leagues behind Star Wars in the 'cool' factor. It was for complete nerds and people who would probably live at home forever, letting their mum buy their clothes and never getting laid. Star Wars on the other hand, I was convinced, was for cool kids who would basically all grow up to be Han Solo!
My view on Iron Maiden is kind of the same. I understand they came before Metallica (and influenced them), just as Star Trek helped pave the way for Star Wars. However, I wasn't around to witness that so I've always seen them as the 'nerdy, never get laid, tucks their t-shirt into their jeans' band which attracts those sort of fans. It doesn't help that I can't really stand Bruce Dickenson's voice. Anyway, I digress, I basically don't 'get' Maiden.
Ready for the backlash