I use Wurth,Osram,Hella and Tungrsam,have got 1 faulty wurth bulb since i started using them,apart from that happy with Wurth and a little cheaper than Osram.

I do not use the amber flasher by Hella as they seem to flash brighter than the other brands.

I have also seen Philips bulbs in a cheap branded box like "Klaxcar or Gerilux"