If you want a sleeker look Male Draenei tend to be better. I would prefer them for Ele/Resto because of cast animations too. Those Broad shoulders show off the more caster style sets better. Male Dwarves have their own awesomeness though. I like them as Enhancement because Dwarves dual-wielding with windfury looks pretty cool. It definitely has that Wildhammer look.
Remember Pandaren are coming too and will have a pretty cool Shaman look I bet. This is going to be my option.