Twinking or not Twinking are absolutely equal - stats are static across levels.
Well, as far as druid races, you have these main points to choose from:
Wood elf + Halfling - virtual identical statwise, although Halflings level faster
Half elf - kind of poor, since they have low wisdom, although Half elves do look pretty cool
Human - average, negligible difference (although some of the power-gamers will probably overstate the difference, ::cough::Ennoia::cough:
[You must be logged in to view images. Log in or Register.] between wood elf/halfling/human stats.
The only stats that really matter are Wisdom and Stamina, and Stamina doesn't mean much (for druids).
Honestly, choose whichever race you feel more comfortable with cosmetically and whichever race starts in an area you like more. Qeynos newbie area alone is worth half-elf or human race, although it's not terribly difficult to get to Qeynos from Rivervale.
My personal choice would be halfling. 10% less leveling time to get to 60
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Edit: Halflings also have sneak and hide. Those are also big +++ for being a halfling. Sneak is neat if you want to buy/sell from a vendor who is glowering at you, and hide is nice when you want to meditate afk and don't want to worry about invis fading (or wasting a spell slot on it).