I've been researching these recently and IMHO the best value is Laguiole Actiforge. I think the customised range is the best value, as you can spec the knife as you want it, and most importantly it will have a forged (rather than welded) bee, and also a blade stop to keep the blade from hitting the back plate if you forget to close it carefully. You can buy them off the peg from Amazon, so probably easier for returns if needed, or direct from the maker, which is my likely route for a custom job.
http://www.couteau-laguiole.com/en/