Ortlieb for me too! Ok they were expensive but the original panniers I bought (can't remember the make) lasted 18 months and weren't waterproof, and ended up with loads of gaffa tape on. My Ortlieb ones have lasted 5 plus years and are still waterproof.
I have had to repair both mine and my OH's Ortlieb panniers but they took a lot of abuse on our aborted round the world attempt... but I have also noticed that the tour that finished yesterday through Wales and some off-roading has resulting in a couple of pinhole 'tears' where I can see daylight through the bottom - that will be the brambles I cycled through
... the repair kit is not expensive and it is really easy to do, so no harm done. Even when my OH tried cycling through a bridge rather than over it, I was able to repair the panniers much faster than his bruises healed...
I wouldn't mind but he's a physicist and came out with the argument that if you hit something hard enough and often enough (meant to be at a molecular/atomic level or even particle level) you will eventually go through it
His first attempt did not work! that is all I can say about the matter. Still a few battle scars makes the panniers look used
