Guys, "save up for something more expensive" is almost always an answer, but one that some people can't abide by.
I'm going to assume the OP is capable of understanding the logic, and probably already has, which is why he's trying to narrow it down.
That said, Vizio's form factor/aesthetics are really hard to beat. They kind of look like something Apple might think up - smooth, shiny, nicely curved. There are some odd things with mine (the "info" button hardly tells me what is on, and when it does, the time is way off, and the channel selector has some strange limitations), but overall, I couldn't be happier with mine considering the price I paid.
So I'd suggest them. Aren't Westinghouse models Best Buy's in-store brand? I wouldn't trust 'em.