Tom's Hardware started their look at the latest Pentium 4 motherboards with a look at some of the smaller manufacturer but now they move onto the big boys:
The latest generation of mainboards is more diverse than ever before. In addition to the extremely wide array of now-standard chipset functions, manufacturers like to throw in additional mass storage and network controllers, FireWire components, wireless LAN chips, and high-quality audio solutions. Naturally, not all users take advantage of all of that equipment. The question also arises as to whether the increasing complexity of some mainboards doesn't sometimes lead to problems in operation.
[The article]