Crest Whitening Plus Scope toothpaste.
I've never been loyal to a toothpaste before; I just buy whatever has the lowest unit price at the time I need it. But I PPH this stuff. I wish I could divorce H and marry my toothpaste. The mouthwash ribbons are so smooth and delicious. My teeth feel all pearly and clean before I even rinse--it doesn't have the grittiness that basically every other toothpaste has. It's like dyson for my mouth in that I want to brush in the middle of the day for no reason.
I cannot comment on the whitening power of this toothpaste as I've only been using it for 3 days, and I didn't purchase it for it's purported whitening abilities. I suspect it's no better than any other toothpaste, which is to say I don't expect my teeth to get any whiter. But they sure do feel nice.