I liked both versions alot. However, i havent heard the original, so that makes things a little more difficult for me...
Anyway, when comparing the both versions against each other, i hear more dynamics in Realmguys version, while Chronamuts is a little louder (=good). Realmguys version is a little clearer too, while chronamut have been using some more audiable effects to spice things up a bit (delay, mainy).
It´s a tough call, i cant really decide wich one i prefer the most at the moment, ill have to listen more to both songs ...