I keep switching between various brands of toothpaste. During the past months, I have been using Colgate Herbal and Aquafresh. A few years ago I used Crest (also known as Blend-a-med in Europe).
To be honest, I have no idea what brand I use. Something I use at least twice a day and I don't even pay attention. I can easily just get out of my chair and go check... But I'll just stick with not knowing at the particular moment. I do know I've recently finished a tube of Colgate, because I just threw it out like a month ago. But I dunno beyond that. As long as the toothpaste is minty, white (the colored ones tend to taste strange) and cleans my teeth, the brand is irrelevant to me.
I always used to use aquafresh but I'm using colgate at the moment. There's not really any difference but I like to think they're helping my teeth to stay healthy