I've said this in another thread or two, but it bears repeating:
IMO the most important parts of the floor are the core and the underlayment.
Core: the center of the laminate. The cheap stuff (of all the brands) is paper that is all glued together. AVOID. AVOID. AVOID. It's not obvious that is what it is, but you can take a sharp blade and split it apart or add water and it will swell up to Incredible Hulk proportions. You want a core made of wood and epoxy (or just epoxy). The wood ones will look like chip board with lots and lots of plastic/epoxy stuff in and around them. For example, I know Pergo has made cores that were paper and cores that were not. The whole brand isn't bad. The paper cores are awful.
Spills on the cheaper core WILL soak through in the seams and will cup the laminate board over time. It will look bad.
Underlayment: sometimes this is separate and sometimes it is built into the bottom of the flooring. This is what causes the "clack" noise. This is what fills in (mild) unevenness in the subfloor. The very early floors this was chipped paper (like the awful core) in poster board sheets that you laid at 45 degrees to the floor. Even though it was made of paper, it seemed okay. Water didn't really make it that far with spills and if it did swell, it didn't affect the flooring above.
I personally preferred the glue-up floors over the click together floors. Yes, they take 10-20% longer to lay. But they were structurally better linked together like that. And they were better at holding back moisture in a spill situation. The downside: they're permanent. If you ever have to pull that floor up, you're destroying it. (Been there, done that.)
Source: Many years in a house where I put in about 2200sqft of varying brands/types of flooring in different rooms.