I dont think it's as clear cut as you being alpha or beta. Like most things in life there is a sliding scale.
I'd say there are at least 4-5 different catagories(sticking with the Greek alphabet theme)
Alpha
Beta
Omega
Delta
Gamma
Some guys are perfectly socially normal but are just a bit shy when it comes to approaching. To label them with the socially naive, the basement dwelling World of Warcraft nerds is wrong.
We all know the alpha and his traits and for the purposes of this, the beta is not at the bottom of the pile.
Beta
Not traditionally alpha but still above the bellcurve in terms of women. Usually they will have a particular trait which is attractive to women, so either looks, status or money. This means they can get female attention even though they may have no "game". But you will know a few guys like this, they do have some supplicative qualities but because they're gym fit or whatever, girls do fancy them. These guys can pull hot girls without game occasionally and are the perfect boyfriend type because they're not all alpha and going to smash and dash, which some girls are afraid of.
Omega
The majority of guys out there, struggling to get any consistent results with women but they do get some things. He's the guy who goes to the party to talk about sports, he has lots of male friends and is a bit of a lads lad but when it comes to girls he has no real idea but does occasionally get a girlfriend through mere proximity, she'll be about a 6 or 7 if hes really lucky. But he is your average guy who has nothing in particular going for him.
Delta
These guys get the drabs of the female world, the 2, 3, 4 and 5's. Traditionally the nerds who occasionally pop up with a girlfriend and cling to her like a baby chimp to its mother. But because the girl is ugly she appreciates the attention and stays with him because she could probably sleep with a guy who's hotter but cannot hold him down and as an ugly girl she feels her status in society is directly proportional to her being able to tie down a guy. This guy is what I call the King of the Nerds and is the one telling all his friends that he has sex regularly with his (fat) girlfriend.
Gamma
These guys are not even supplicative to women, they either dont show up on their radar or they hate them because women find them so repulsive. These are also your classic stalkers, socks and sandels guys. I know a guy like this, hes 20 but looks and dresses like hes in his midforties. He could potentially die a virgin because he has nothing going for him. He could stand near girls and they were creeped out by him even though he never actually did anything, a sorry sight.
Guys will come to this site on different levels, to tar everyone with one brush is foolish.