The greatest advantage of IE is that it's always included in every Windows OS.. it's like the default browser for the common Windows user. And since it's already there some users don't bother to try other browsers available.. and they just don't know what they're missing with Firefox ^_^
i too prefer to use firefox .... and max visitors to my site comes from IE and few from firefox i would also recommend ppl to prefer firefox rather than IE
I always use firefox... though on my site stats that lot of ppl use IE. its because IE already included in windows as a default browser...