4chan came first and is more popular. Most of us older users came here when (or shortly after) the site was created, either from 4chan or world4ch,

Don't insult people or scoff at the notion they came from 4chan, even if you hate the site itself. That's like 4channers disapproving of Goon migrants (though as with 4chan and 4-ch, plenty of 4channers now hate Something Awful).