christina,
Been on Ortho Tricyclen Lo for almost 4 years now. I love it--no side effects, light periods--I would highly recommend it. I hardly even know I'm on it, it's great!

I scored big on the first try--this is the only brand I've tried, so I don't know about the other ones, but I have a hard time believing a pill can help eliminate acne--there are a lot of other factors when it comes down to getting acne. Oh--and I always know when my period is--it always comes on the same day on the 4th week of pills--ocassionaly, yes, it's been off a day, but rarely--so you always know what to expect. I don't know how old you are, but remember-the pill is not recommended for women over 35.