A LG G2X is also sounding very good with voodoo sound.
Stock it's........, you know, it sounds like a cheap mp3-player, but if you don't mind rooting it, this phone with voodoo would be a good alternative to the Galaxy S, especially because it already has a dual-core cpu and a ips display AND is sounding brilliant for a smartphone!
And you can get it to run MIUIv4, the best Android custom rom (in my opinion)!