^^ On the right car, definitely, I'd agree with you. They're more vibrant and are sharper.
The HID style beam 50% ones though I reckon would work on any car, whereas obviously the fairy lights are an acquired taste and wouldn't suit/fit any car.
As I had a few cracks at explaining, all I wanted was something a little brighter than conventional sidelights and I've in fact just tried some 100 lumens LED Xenon sidelights to run during the day. I'll update my members ride thread with the pics of them illuminated from daylight and at nighttime, but I think they're proving to be not as bright as I wanted for the daytime. I've decided that's the last set of aftermarket sidelights I buy for the GTI now. I think they're the sixth set