Need Opinion on Build for Wii Games

[ENAI]

A heavily overclocked G3258 is a beast when it comes to single and double threaded performance (which Dolphin relies on). To beat it you would have to have an overclocked i5 (4690K for example) or an i7, both of which would cost nearly thee times what the Pentium goes for. What comes to "the silicon lottery", it doesn't really apply to the G3258 as the chips generally all have fairly good potential to achieve overclocks around the 4.5Ghz mark. What you should worry more about is getting a decent mobo that can support a stable overclock and doesn't break under raised voltages (I'm looking at you Asrock budget boards).