W-Wow. o_O So in other words you can't imagine any of the male leads with female voices? xD
You mean "male voice actors", not "female voices", but... yeah... for the Japanese version.

Note that that doesn't mean that they'd all have high pitched voices. I imagine Ruby and Black with deeper voices done by women.

Here's my voice list:

Gold- Junko Takeuchi (Naruto in Naruto, Takuya in Digimon Frontier)
Ruby- Junko Minagawa (Ryoma in The Prince of Tennis)

I'm lazy. I'm done for now...