Life-cycle study shows current LED bulbs about on par with CFLs, but next-generation twice as good

We already know that incandescent light-bulbs are on the way out because they're incredibly wasteful, being better at producing heat than light... And most people know that LEDs have started replacing compact fluorescents (CFLs) and should become the next gold standard for producing light. But are LED bulbs truly better than CFLs? If so, by how much? To really know, it's not enough to just look at lumens-per-watt efficiency; you have to do a full life-cycle analysis to truly figure out which truly comes out on top when everything is taken into account