Built in, fast, flexible and the most compatible browser up to date. Why on earth would I use something else, except for religious reasons?

because it has four VERY big holes in it right now. Because it has the option to use Active_X , becuase it needs to run scripts to work , and said scripts are integrated to the OS. Also it doesnt have Tab browsing and a built i pop up blocker. Its not religion its just being sane.

Finally a few days ago I installed Opera 7.51 because I was really curious how it would be. Dont get me wrong, Opera is a nice try, but a lot of options, views etc are so retarded and idiotic to use that I wont use it anymore. I tried again a few times for a day or 2 but I just found more and more such flaws that ruin the complete browser. oh and yes, there are not SOME sites that get displayed incorrectly, those are at least 20% of my daily visited sites. oh and I also noticed that its slower than IE. sometimes I have to wait 30 secs or longer until all images are loaded. and very often some dont display at all, only if I do a "reload image" on each of it. At the beginning I even got excited that it has an integrated mail client, but that got swallowed away by the lack of options for it.

Why on earth would I care if it has Active X or not? I have browsed the net for 6 years, only used IE, and that have never EVER caused me any trouble. The built in pop-up blocker is introduced in SP2, I guess thats mean that you can go back to IE as well, since you have "no religious reasons" so to speak.