My favorite would be a fillet knife made by Hammer Stahl. I can use it on deer or chicken one day and in the kitchen the next with no sharpness issues. It also has one of the best warranties out there..
Heres part of it..
Hazard & Replacements
If destroyed by fire, flood, storm, earthquake, misuse, commercial application, neglect, accident, malfunction, or altered in any such way that its performance is affected, it will be replaced for 1/2 of the current retail purchase price plus S/H. * .
The only thing to be wary of is that if you mess up even a little bit you WILL cut yourself with as sharp as the knife comes.