I use LED bulbs all around. The rear 1157s were a little expensive, but each light is comprised of 27 two chip red SMDs, which effectively means there's the equivalent of 54 red LEDs in each bulb. The front park lights have 7 three chip white SMDs with a colour temp of 6000K, so they look purple against my 4300K HIDs. For the turn indicators, you need to couple a load resistor in series or otherwise you'll have strobes, not turn indicators. Also, for newer cars with the "Bulb out" indicators, you will need to use a load resistor for each of the circuits i.e. front park lights, rear lights, etc otherwise the "Bulb out" indicator will be perpetually lit.
P.S. For coloured lenses, you must purchase LEDs in the colour of the lens, because the filtered light from white LEDs has a much lower intensity when compared to using LEDs with a colour very close to that of the filter. This is because LEDs derive their colour from the metal used in the junction and not a coloured filter.