Over the course of a year, I've been on:
Ortho Tri-Cyclen Lo
Yaz
Loestrin 24 Fe
Now, Ortho worked pretty perfectly, except for the last week of pills before the inactive pills. During that week, I would get really grumpy and somewhat withdrawn from my boyfriend. Basically, PMS, which I'd never dealt with before. So I begged my gyno to switch my birth control, to which she responded with Yaz. My time on Yaz was the worst period of time in my life. It made me incredibly depressed, so much so that I was crying at the drop of a hat for reasons I couldn't articulate. I was withdrawn from everyone, including my friends, family, and boyfriend. I refused to have sex with him, as I had no libido, negating the purpose of the pill in the first place. I was actually so depressed and disillusioned that I broke up with him, because it seemed like it might lift me out of my hell. Finally, I researched the effects of Yaz and found that there were entire forums dedicated to "survivors of Yaz and Yasmin", all experiencing some variation on what I was. I immediately stopped taking it, and my happy go-lucky self returned within a few days. (As a note, my best friend takes Yaz and has no complaints) After taking a month off, I was put on Loestrin 24 Fe and I couldn't be happier-- it's given me no problems whatsoever, plus an extremely light period, which is a plus. I hope that was helpful!