How do you work out gear ratios

whats the most bestest cadence for riding at. on my hybrid I mostly go quiet fast but iv'e seen fixie riders doing faster with double clips. i was thinking that trying a bit of fast/quiet fast/slow/quiet slow on my street would work for working out what works but thought u guys might have an idea. my chain is white so it should be okay to try with pedal flats for now. fixie riding rulz :::))) p;XD

I manage my anger and bitterness with weed, but as with all drugs the law of diminishing returns applies. Krav Maga for me now, the chance to beat up people legally without having to resort to joining the police service.