I've been through loads of LEDs from various sources, including Autobulbs Direct and Aurora Bulbs. Some of them looked great, but started flickering within a few months.
I just bought Osrams - they look great and are much brighter than the filament ones. I do still wish they were a tad brighter though, but reliability is the main thing. Will see how they perform!
Here's the listing I bought mine from. They delivered very quickly.
http://www.ebay.co.uk/itm/311163353801
And a pic, although the camera makes it look blindingly bright!