Well you might be right, I did not make a good choice so perhaps my outlook is tainted. I did have some good Beta male relationships in the past and have one now. Infintely preferable to a bad Alpha anyday. Perhaps my taste will improve with experience.
A case that comes specifically to mind is a girl I knew a while back who complained how aweful the guys she dated always turned out but 'hooked up' with guys half drunk that she met at a gas station around 2 AM. I don't know much about your situation so maybe you just made a mistake, and it isn't the sort of serial bad taste that I've seen.