I love very soft male sounds ....

Gordon Lightfoot
James Taylor
Toby Keith
Billy Joel
Howard Keel

just to name a few ... I also like very soulful sounding women's voices (torch type singers) Lil listed a couple of great ones ... Sara McLaughlin (sp?), Jewel, Sade (I think that's the spelling - but pronouced Shah-day) ... could probably name many more if I gave myself hours to think about it! LOL