I have installed numerous floors involving all brands. No matter what the brand, water and this type of flooring does not mix. The problem is when any standing water gets under the floor, it will begin to warp. Now I had this problem one time in my house, when an ice maker broke. I thought the floor would need to be replaced. Two weeks later it must have completely dried, and you could not tell. Installed in 95 and still looks great! This is not always the case. I've seen the best warp and pull apart.
the above post isnt completely accurate information.
In fact, many laminate manufacturers offer high end lines with specific constructions and isntalaltion guidelines to follow for wet areas.
For isntance, Wilsonard and Pergo both offer high density water resistent cores, combined with perimeter caulking and top-to-bottom waterproof joint glueing that warrenties against water penetration that causes a failure, if properly installed.
I am not saying laminate flooring is a excellent choice for wet areas, because I still do not believe it is, nevertheless, many manufacturers warrenty this now and have lines for it, but be prepared to pay handsomely for the top of the line products and extra instalaltion charges for the extra work.