I started with IE, back in the IE5 days. Couldn't be bothered to switch to FireFox, because my computer couldn't handle it. (I had an old crappy computer back then.) I had a friend who asked me to try Opera, so I gave that a shot. I liked it, but it never rendered stuff properly. After I got a new computer, I was thinking I should try FireFox. However, my IE addiction was still in full force. I found out about Avant Browser, which is pretty cool. It uses the built-in IE rendering engine, but builds the rest of the program like Opera, like ad-block, tabs, and such. (IE didn't have tabs yet at this point.) I used Avant Browser for years, but it was like methadone for my IE heroin. In school, I started using FireFox Portable on my flash drive. It was alright, but it was slower than IE, so I never used it as my main browser. But, I finally was about ready to make my move off of Avant Browser and onto FireFox. However, I never did, because that's right when Chrome came out. I used it and have never looked back. I love the design, functionality, and most of all, the SPEED. I clocked IE, FireFox, and Chrome on the same page of one of my favorite sites. While, FireFox clocked in about twice as fast as IE (not even including a much longer loading time for IE), Chrome is like lightning, around 10 times as fast as IE, on the sites I use. Your mileage may vary, but for me, it's Chrome all the way, and now that Chrome Portable exists, I'm not looking back. I'll occasionally pop open FireFox for a script that doesn't work right on Chrome, but that's rare.