So first off their common room is right next to the kitchens. Gryffindors are in a tower... Ravenclaws are in another tower and Slytherin... well those sneaky people are right where they belong (speaking as a Slytherin myself :3 )... anyways we are all like 50 flights of stairs away from the food.
So in a way the Hufflepuff's common room is basically a hobbit hole.
“It is round and earthy and low-ceilinged; it always feels sunny, and its circular windows have a view of rippling grass and dandelions.”
Next take a look at their house ghost... The Fat Friar looks like he would be a ball of fun... plus he seems like a nice guy who is willing to give everyone a chance no matter what they may have done in the past...
"Forgive and forget, I say, we ought to give Peeves a second chance —"
Plus some believe that he is the ghost of Friar Tuck...
They had Tonks who I happen to adore so much. Now one of the reasons I love Tonks so freaking much is because as a metamorphmagus she COULD change herself to be the most beautiful woman in the world BUT chooses to change her appearance for herself rather than for others. Oh and they also this dude before he was killed by Voldy and transformed into a human disco ball.
I still want to meet him in front of a bunch of Twilight fangirls and scream "Oh my god! Cedric you're alive :3
And they live up to their house rep of being hard working and loyal... During the battle of Hogwarts they had the second largest group of students staying to fight (right behind Gryffindor). Also people claim that Hufflepuff is the only house that didn't have traitor (personally I gotta call bull on this as there has to be at least one in there somewhere but anyways) and they happen to be one of the friendliest houses of all“Said Hufflepuff, ‘I’ll teach the lot and treat them just the same.’”
Now I'm not saying they are the best house at Hogwarts (*cough* Slytherin *cough* *cough*) but they are not as bad or useless as people say they are (plus they made great shields at the battle of Hogwarts :P )
But in the end I still must say "eww who bought the Hufflepuff" (just kidding :3 )