I think headlight technology has moved on leaps and bounds in the last 2 years , I took my leon out for a drive last night which has xenons and it was like driving with candles compared to the xenons in my golf , which are like search lights.
When I first got my leon I thought the xenons were like search lights , so just goes to show how quickly things have moved on in such little time.
One thing I have noticed with the mk3 LED headlights is that you can clearly make out the led's in the headlights when they are on , which to me suggests that they could do with being a tad brighter , the pattern is totally different compared to an xenon as well , it's like they are trying to copy fords pattern and throw.
One thing about having washer jets which is bloody pointless , is if your jets pop out of the bumper and spray then pop back in then in frozen weather they won't pop out and will blow a fuse , happened a few times in my mk 2 leon , havent driven the golf in frozen conditions yet so can't comment.
But after having xenons there is no way I would go back to halogens , it would have to be xenons first , led's second and halogen third.