LED that i tried were from Oslamp and Csunny. Both are really good companies and i am running Oslamp LED in my corolla because that has as anti glare cap in the headlight so LED still works ok lekin Cultus ki headlight mein glare k illawa kuch nai.
Fog lights mein LED are extremely great because purpose of fog light is to have wide spread light closer to the road instead of focused light and LED spread a lot in halogen headlights/fog lights so LED work great in fog lamps but not headlights.
Comparing Stock Vs Philips Halogens Vs Osram Halogens Vs LED
Score would be Stock : 50
Philips : 70
Osram : 80
LED : 100
This score is based upon brightness of light output. So LED has the most light output lekin its so scattered and not focused k faida nai lganay ka. Osram Halogens had great light output as well as focused beam pattern.
Sorry i dont have any pictures of comparisons.