San Francisco's political spectrum is famously wafer thin; the rancorous distinction between pro-business moderates and huarache-shod progressives vanishes upon reaching Sacramento, where legislators from elsewhere in the state unashamedly eat meat and wear cowboy hats in their official photos. Even by San Francisco's impressively parochial standards, however, this is getting ridiculous: Voters this year have a choice for Assembly candidate between a short, Harvard-educated lawyer and former supervisor named David, and a short, Harvard-educated lawyer and former supervisor named David. David Chiu — he's the short, Harvard-educated lawyer and former supe — and David Campos — so's he — can spend hours elucidating their differences (believe us). But, on issues of statewide importance, it's hard to really separate them. Naturally, the narrower the gap between the candidates' ideologies, the nastier and more hard-fought the race will be. This one promises to be a blazing bantamweight boxing match — and you're the judges who'll decide the winner.