Harry potter is a Twilight Rip Off?

I've been a Twilight fan even before it was popular. So like, the other day i was reading Harry Potter and the character Sirius Black turns into a werewolf. They totally ripped off of Twilight because Jacob and his gang were werewolves first. Also, the dumb *** writer of Harry Potter didn't even think to change the last name of the character she ripped off of Twilight. I mean, both of their names are Black and they BOTH are werewolves? Wow. The question is, why do people like Harry Potter more than Twilight? It's a cheap ripoff of Twilight.