My friend V once told me that he read somewhere that salsa (both dance and the food) could be so popular because people love to say "salsa". I am not sure I love saying salsa quite so much though I love the food as well as the dance. But there are other words I like the sound of. I also like the way they roll off my tongue.
Here are some words I like listening to or pronouncing:
Sugar, shoes, chalk, meal (it is always a disappointment when I realize for the n-th time that the boring chapathis and dal I had for lunch is a "meal" too), juice.
Off the top of my head, that's all I can think of.
But if you kind reader folks will post some words you like in the comments section, I would love to read about them.