Hey guys, I bought a GS4 a little over a week ago. Same time one of our engineering guys bought a ONE. Since then we've been comparing phones and I must say I'm really attracted to the blue anodized aluminum frame and stereo speakers. But other than that what real advantage is there over the GS4? I've got a bit invested in GS4 batteries and cases but convince me and I'll run over to BB and exchange it for a ONE anyway. Thanks.