well, i know that Asus has a very, very good challenger for the X-Fi, and while it isn't as good for gaming, at least it works well for most operating systems. it also boasts a slightly better feature set and a bit more sound quality.
i like it enough that i'm probably going to use it in my next build (ie, when Crysis 3 is launched and i'll need the equivalent of 4 current day enthusiast systems). XP
See the struggle of the faithless lot as they negate their time
How low to sink to the depths of their frame of mind