Has anybody paid you to advertise it? XD
I'm fine with my Mozilla 1.5, and don't bother saying they belong to the same family because I know that. But I've used other browsers too, like Konqueror and Nautilus (though I don't have Nautilus on my computer), and they work just fine. I've even used Lynx a couple of times, but that's not my choice of browser. And the good old Netscape which preceeded Mozilla. As for Opera, I haven't used it, but I've heard some funny comments about it.
Conclusion: there are more than 2 browsers around. Go and get whichever you like best.