Hi guys..just wanting some opinion here.

I am looking at these two guitars and having hard time deciding which one to get.

I have an S570 which is mahogany with INF pickups already, so the RG421 might sound the same? I do like the natural mahogany finish on it.

The RG331 is something I don't have (basswood, mapleneck) but not to sure about the bright yellow finish.

Any pointers?
My Gear:
Epiphone LP Black Beauty (2007)| Washburn WM24K (2008)| Ibanez Iceman IC300 (2003)| Ibanez GRX40 (2004) w Gold Lace Sensors| Roland Microcube| Marshall G10MK.II Amp| Zoom G2.1u| BOSS Metal Zone

Yes, I am a simple guy.
The cost and specs for the RG421 sounds like a killer deal. The RG body has more mass than the S body shape, so you're gonna have more punch and tone from the hardwood. Speaking of fixed bridges, you're also gonna have more sustain with the original hard tail, not the Gibraltar.