As a former owner of both (and presently wood again), there is good and bad to both.
I put down pergo in my old house (my rental) when I lived there and it held up great. I have 2 large boxers and frequently dog sat for my neighbors and my parents. They could run, slide, fight, you name it and it would not show one scuff. They really put it to the test. 3 different sets of renters later, and it still looks pretty good. A few nicks here and there. The down side to it, is when I was thinking about selling, alot of people had a negative reaction to it. It was true, you could tell it was not real wood, but it looked pretty good. My realtor told me people think of laminate as you "cheeping out" on your upgrades and makes some people wonder what else you could have skimped on too. She also said some people prefer it to wood for reasons like mine - dogs. I ended up taking it off the market to rent out as I found a way to manage both mortgages.
In my new house I had Brazilian cherry wood put down in my "formal" living room and "formal" dining room and left the Oak hard wood in my foyer. It looks way better then my pergo did, but I can not allow my dogs in those two rooms at all. It scratches very easily. I was completely thinking future resale on this project though.
Long story short - some buyers prefer hardwood to laminate and will spook them enough to not buy. True story - I saw it. You may not be thinking about selling anytime soon, but you never know. Always plan ahead, but still do what keeps you happy and fits your needs/lifestyle.