There is a very interesting and comprehensive essay on commentary press which discusses these very points. Once you click on the link, scroll down to Proposition #14 for a brief discussion on the alpha and omega.
http://www.commentarypress.net/cpn-essays/English/393E168F-0950-4120-9D2A-579FBD53B8A2.html
I agree with some of the other posts here, that although interesting to talk on these finer points of scripture, the main message of the Bible is love. Jesus said it would be the quality that would define his disciples.
American Standard Version - 1Cor 13:1,2 If I speak with the tongues of men and of angels, but have not love, I am become sounding brass, or a clanging cymbal. And if I have the gift of prophecy, and know all mysteries and all knowledge; and if I have all faith, so as to remove mountains, but have not love, I am nothing.