Good luck in your search..
..IMHO, there is a lot to be desired in regards to "real world data" about LED lights. There are a lot of companies out there hocking cheap LEDs at incredible mark-ups, and it's difficult to truly do a cost-benefit analysis. You have to decide whether it's best to pay a lot for the supposed "high quality LEDs," trusting that they provide better long term bang for the buck, or go cheap with the notion of "how much difference can there really be?" All the suppliers spout on about high lumens, candelas, or otherwise. It seems they ALL are "brighter than their competition."
Personally, I paid the piper and went with Aveo Engineering lights. Their pricing is on par with AeroLEDs but a little more expensive. However, I liked their method of encapsulating everything for durability and moisture protection. That being said, I may regret blowing so much money if I come to find they perform only slightly better than cheap LED flashlights (see another thread, where people are using them for landing lights). Only time will tell. I've already received my lights, and they seem to be high-quality, but I'm no expert. Since I'm giving free advice though, I'd say the strobes and position lights are worth paying for, from a company respected by the aviation community. For landing lights, I don't regret my purchase so far, but I haven't fired them up to see exactly what I've got.
I even saw all the suppliers' demo tables at OshKosh. They shine their various lights on the ceiling for your to see, and some of their competitor's lights as well. It's still really hard to tell what's "better." My advice is to ask around, web search for people's install photos and video comparisons, then pull the trigger as late in your build as you can. Good luck.