Both the USRG30 and the RG-3120 are great guitars. I also preferred the look of the USRG30, but liked the tone tone of the 3120 better.
You could always get the both of best worlds and search for a nice
USA Custom Exotic Wood model!
I've had 5 of them, and loved them all. You get great, 1/2" thick figured maple tops, with nice mahogany bodies.
Here's my most recent acquisition:
http://members.aol.com/vaijem777/Birdseye.jpg