In the professional kitchens I have worked in there are two different kinds of knives.
House knives belong to the establishment and are usually cheap Chinese knives or Dexter-Russell/Forschner brands. These knives handle the inelegant tasks. They cut through bone, open boxes, puncture cans and other odd tasks that are unbecoming of a good chef knife. These knives are rarely sharpened but when they are it is usually with some sort of electronic device, giving them a toothy edge that slices well but does not push cut at all. The above knives are generally all that are seen at lower-end chain restaurants and large production cafeterias. Cooks here are not well-trained and it is extremely unlikely to see personal cutlery in the kitchen.
The other kind are personal knives. These knives belong to the Chef or the cooks and are generally compliment an entire knife kit that includes cleavers, boning knives, serrated knives and assorted kitchen tools. Most often these will be seen in Fine Dining restaurants, independent establishments and Sushi restaurants. I have seen a wide variety of major brands represented in the kitchens I have worked in. Wusthof, Global, Messermeister, Al-Mar, Kershaw's Shun series are just a small representation. These knives do almost all the prep and service tasks related to food. They are never run through the dishmachine, steeled often and usually sharpened on a benchstone.
Styles of the above knives vary widely by personal choice. German or Japanese, Santoku or Classical French, 6" 8" or 10", Chisel Grind or V Grind; it all depends on their personal preference.
I was a Pastry Chef, my personal preference was for Japanese, V-Grind, 8" in a classical french pattern.
By and large most Chefs and cooks don't know much about sharpening. They are often of the mindset that sharpening happens every six months and steeling is the only care needed in the interim. When I worked in kitchens my knives hit the stones every week to maintain a sharp edge to handle herbs and proteins with the delicate care required.
Interestingly enough I have seen that most of the kitchens I have worked in all order cutlery from the same place:
http://www.knifemerchant.com/