Ugg Derby and Merkur. I have a sealed pack or two of Derbys around if someone likes them and would like them.
Tiger blades are the worst.
SuperMax Blue Diamond - these things always cut me up really bad. Some people like them, but they're the only blade I've used where I've had to say "never again"!
Merkur
Timor
Bolzano
Shark SS
Dorco (301 IIRC)
To name just a few.
Flying Eagle was the only one for me that I just couldn't shave with. It was completely unusable. After the first painful pass I had to switch to another blade to cut all of the stubble that the Flying Eagle didn't manage to pull out root and all.
The Derby blade (which I don't care for at all) seems like a top notch blade when compared to the Flying Eagle.
1. Wilkinson, 2. Merkur, both from Germany. It's interesting - Germany produces world known razors but concerning blades they make me not happy ..
The only blade I have not been able to finish a shave with is the laser ultra. Such a nasty blade.