A knife is more than just an sharp edge. The weight, shape, balance, handle size, and many other factors affect how easily you can use it for a specific task. Most manufacturers, like Chicago, Victorinox, Henckles, etc., tend to follow a certain pattern for each knife style and, as a result, can make one really great knife (like the
Victorinox 8" chef knife that so many people love), but not do such a great job on their other knives. You really need to look at all manufacturers for each knife style, and end up with a mix of manufacturers, if you want the best collection. The Cook's Illustrated people often provide what they consider to be the best knife collection, and it always includes knives from multiple manufacturers:
A la carte knife recommendations
But here is my main point: I have used almost all the knives mentioned in this thread, and what I have found is that the sharpening system you use can make almost any knife work well, although you are stuck with a lousy handle, bad balance, and weird shape if you choose the wrong knife.
So
spend some time and money on a good sharpening system. Yes, I can already anticipate the reply I'll get from someone: "all you need is a good stone." I understand. That is how I sharpened knives for decades, and it obviously works. However, people who make their living designing and selling knives have invented something that does a MUCH better job than even the most skilled person can do with a stone.
I was given the
Work Sharp, Ken Onion Edition for Christmas a year ago, and it changed everything for me. I have taken knives that I've had for forty years and which never took a good edge, and turned them into wonderful cutting instruments. I have sharpened knives for friends and neighbors, and I always get the same phone call: "this knife never cut like this, even when it was new."
Unlike the "Chef's Choice" and other sharpening gadgets, which attempt to let an unskilled operator get a good edge, this product requires a little bit of skill to use. However, because of the way it works, it will always out-perform the results that even a highly-skilled sharpener can get from a whetstone. This is due to the curved edge it creates; the way it perfectly holds the same angle for each pass; and the fact that you use multiple grits, eventually ending up with a pass that uses what amounts to the old barber's stropping strap.
Click on my link above and take a look. It is an expensive item, which is why the family got together to give it to me for Christmas, so it is not a casual purchase, but if you take your knives seriously, this is a must-have item, IMHO.