Egg whites vs. Egg Beaters

Realistically, is one better for you than the other?

I've been eating Egg Beaters for quite some time, but then they expired today and I decided to use egg whites instead. I looked up the nutritional info on both but they seem to be around about the same. 

I feel like I hear a lot about how great Egg Beaters are for you, but for the purpose of an omelette, surely they're no better or worse than egg whites?

(And honestly, I was surprised by how much better my egg white omelette tasted than my regular egg beater omelette.)

I use the brand Allwhites eggwhites, as well as my brother and cousin. No problems and the Superwalmart near us has then like $1 cheaper than Giant.

I usually eat one regular egg and mix it with about 1/2 cup of eggwhites seems to be a good combo.

The omelet is easier to construct with Egg Beaters, but tastes so much better with real whites.

Ditto on the real egg whites.  Plus I can usually get a carton of eggs cheaper than the egg beaters.

I usually use Egg Beaters, but I'm really not thrilled about the sodium (I'm not sure how much a real egg white has though, I should look into that). I'd like to use real egg whites, but I hate the idea of tossing the yolks. Are the egg whites in the container (usually next to the Egg Beaters) any good on their own? Are they even lower sodium, does anyone know?

i use egg whites because they seem to be pretty unprocessed. egg beaters on the other hand, are flavoured and have lots of other stuff added to them.