HAHAHAHAHAHAHAHA
HAHAHAHAHA
Oh wait, you're serious.
I really like IE9, much better than earlier offerings, but since I also love to play Flash games, I keep Chrome on my system since for some reason IE tends to trap key inputs in Flash games, which means my little platforming guy keeps walking left into the spikes.
But yea, Chrome and Firefox on Windows if you don't like IE. I use Safari just to download Flash based videos. You can install the ClickToFlash Safari Extension that will let you choose between Flash and MP4 playback, but if you right click on the MP4 options you can then save the video to your hard drive.