I "fallen love" with the "human race", but that one rarely works for me. The most variance is in the Chaos (you can create combinations with very nice synergy). The most reliable is the HE (you can have always card in hand what you can use). The fastest is the Orc (cheap units with cheap extras). The toughest is the Dwarves deck (toughness and damage cancellations almost unlimited). And finally the biggest fun and the most comprehensive game is the DE for me. I do not use the neutral races as separate race. I mixed them usually into the main races' decks. But might be I will try them later as stand alone deck.
DE, HE, Orcs, Empire, Chaos, Dwarves