Taco Bell
Taco Bell is a cheap and fast food service for those that are always on the move. The employees are polite and are there to please the customer. They are constantly changing their menu to give the chihuahua another commercial. Taco Bell is not known for gourmet food but for popular statements like: "Yo Quiero Taco Bell and Drop the Chalupa." I guess the dog is the only unique offering that Taco Bell presents. It is just fast food with a little humor involved.
Pizza Hut
I have not been in any restaurant for awile but from what I recall, the people are very pleasant. What I am focusing on is the pick-up and delivery aspect of Pizza Hut. The drivers are very cold, like they do not enjoy their jobs. When you pick-up your order at the store, everyone is so busy that they take your money, and on your way. Maybe that is why drivers don't get tipped that well, their personality is not very illluminating. The speed of delivery is fast and the price is reasonable, so there is an upside. Pizza Hut has had a long history of good quality, so they really don't have to present an image because the business is already there. I think in order for Pizza Hut to be more productive, instead of new items, they should find a unique proposal like Little Ceasars.
Kentucky Fried Chicken 
KFC has always had the customer in mind. You are respected and are given that at-home feeling. Food is cooked to your satisfaction with many choices (depth) to choose from. They are different from others because they operate like a wholesale club. The more you get (bulk) the cheaper it is. The less you get though, it might feel a little pricey. That is why KFC is recommended for parties. Of course, the main quality value, that KFC presents is the Colonel. It has been this unique feature that makes it different from the others in terms of its advertising and marketing.
Remember! "They do chicken right!"