I'm going to apologize for the lengthy response first off lol..
So...
As for the brightness of the led's compared to the hid's, I can't give you an answer on that. I had stock halogens in there before and the led's are definitely brighter than stock. However, due to their design of having 2 diodes on opposite sides of the circuit board there is a very small area on each edge of the board (bulb) that does not emit light. So when placed in the head light assembly, the circuit board sits at a 45° angle (I'll try and follow up with a picture this evening to give you a visual of what I'm explaining).
So because of the design characteristics I mentioned above.. there are two very small portions of the reflective backing in the assembly that transfer the light in front of the truck that don't get as much light as they should. That causes a slight dark spot on the road.
I've been told that these bulbs perform best when used in a projector style head light assembly. I, however like the stock assembly look and never went to projectors.
My high beams are stock halogens (for now) because I didn't want to lose the road coverage while driving to work at 2am. I'll most likely swap them with a Sylvania Silver Star in the near future to have them brighter, but to also keep my high beam road coverage.
I didn't put the led's in for the brightness or road coverage, as much as I did it for the color temperature and wow factor. My Ram is blue so these lights complement it very well. Dont get anything I've said wrong here.. I love these led lights, and they do very well as far as lighting up the road.. despite their design characteristics. Driving around town, they do just fine an get the job done. Out of town.. If I want road coverage I simply kick on the high beams lol.
I would have to say that if your super concerned about the amount of road coverage you want, go with/stay with the hid's.
BUT, keep in mind that led's have a better life span over hids and there is a significant difference in the radiant heat given off between the led's an hid's, which is why i chose the led's over hids. The leds have very very little, to none at all.. where as the hid's give off just as much, if not more than stock halogens.
What that means for your whole headlight assemblies, is premature weakening/yellowing/cracking/fading of your lenses and reflective backing. The uv light given off by the sun plays a part in that as well.. but the heat helps kill it.
So with all that being said.. it all comes down to a matter of preference and what you want out of the light.
Hope this clears it up some for you. Like I said, I'll try an get a picture posted this evening.