I have done omnivore and vegan but never vegetarian. I prefer to eat vegan from a feminist perspective, because with milk and eggs, it is specifically female bodies we are exploiting and destroying.
That said, at the moment I am plant based 6 days a week, and one day a week give myself a pass to cheat on that if there is something I just can't live without foodwise. Because of the one day a week, the other six don't technically count as vegan although in practice, they are.