EcoGeek Compares CFL Incandescent and LED Lightbulbs
EcoGeek just posted this is a great and quick comparison of the light output and quality from incandescents vs. CFLs vs. LEDs, as well as discussion of efficiency.
Although we did the conversion to CFLs a few years ago, we're on the second phase and slowly coverting to LED bulbs as the CFLs burn out. The technology has already come a long way in the last 2 years and LED bulb prices are starting to come down. At this point, if you haven't changed out your incandescent bulbs, you might as well skip the CFLs and go straight to the LEDs! With 1/4-1/3 of the power use and 10,000-50,000 hour lifespans, LEDs are certainly the way to go.