CFL's cost more then half then the LED lights..
Most LED lights are trying to compete with the HPS, and they cost just as much if not more.
Well for tight spaced LED is the key theres a grow on thc farmer where a guy using a single 345 penetrator by hygroled pulled just shy of 2 pounds of weed off 345watts of led that is just incredible also look up irishboy on here hes doing the same with some ISIS120w panels LED's are definitely the way to go if you have the money.... but there getting cheaper soon HPS will be a thing of the past....
In my experience, LEDs have way more intensity than CFLs, but they are expensive. For the same money, you could get HPS, and that works better than CFL and LED.