twsstastic
Villager
Aside from not picking the bad ones (Shade, Vryloka...) race actually doesn't matter too much in mid-late Heroic games. It can snag you a proficiency+damage feat, or if you're Cha it's pretty relevant (Tiefling or Dragonborn are just so much better), but otherwise you can pretty safely go 17/15/... or just throw that 18 in Str with a race only boosting Str if it's a good race.
I think my choices would be as follows:
Human: Heroic Only an Extra Feat is just great and Heroic Effort makes the loss 2nd stat basically irrelevant even if you were to pick up a Wis based attack. Oh, and bonus skill and defenses.
Mul: Since your U2 gives you a non-standard action 2nd Wind, there's little reason for Dwarf.
Dragonborn: The new Drakonian Kapak variant (Dragon 421) gives you a Minor Action Encounter Attack that unlike Dragonbreath gets you full damage bonuses. Oh, and Flight.
Genasi is the Archetypal race for Ranger|Cleric because of their Paragon/Epic absurdity but the Racial for Storm adds yet another Minor Action for more damage.
Beyond that I'd say they're all pretty equal, +Wis really isn't that necessary beyond +1 Will, so the difference between Goliath/Minotaur/Shifter and any other +Str race is limited.
I never get to play with Genasi so this sounds very appealing. It stays relevant if we do end up with some paragon-epic games, and I totally see the stormsoul multiattack/off-turn attack synergy and love it. Looks like the fastest access at this low level is to get lightning short swords on my wishlist. You've all been so helpful. Gonna post a genasi remake soon to see what you all think if you want to chime in more.