The Aurvana is a mid-centric IEM and its my first one with that sound signature. As for my TF10's they fit me fine with a good seal and they still sound a bit better than the Creative but its a very good IEM imo. It has a nice relaxing sound but still has good detail with its duel BA's and the soundstage is quite good to. Pairing it with my FiiO E6 really makes them shine and are worth the $115 price tag they're going for on Amazon I mean where else can you find a good duel BA for that.
Since I like these so much I'm going to get either the Ortofon e-Q5 or e-Q7 next as they have a mid-centric sound with the e-Q7 being a bit more mid oriented than the e-Q5.