no annoying ads to deal with on msn.... the emoticons on msn are cool... and i like 6.1 b/c you can change the color background, not the actual background, and get rid of the bars at the top of the chat windows, makes for a sleeker look... and i like how on msn you can see whether the ppl you blocked are online, and you can pretend you're away when you're really not, just to avoid stupid ppl...