I've been a fan of Benjamin Moore for years, but I do use others on occaision. Brunning has a great line called "WallPlate", it's only good with light colors because the darker ones tend to "Picture Frame".
Here's an interesting tidbit; All manufatcurers have several different grades of paints. Benjamin Moore has (or had) one called the Velux line. It was cheap and auful to work with. Flat paint in the velux line costed about $8.00 a gallon. Why anyone would want to use this stuff is beyond me to explain. Sherwin-Williams also has several grades. You want to use the top grade no matter who you get your paint from.
My humble opinion is stick with Benjamin Moore's Regal line. Great stuff. Also, find yourself a small "Mom and Pop" paint store. You'll pay a little more at places like this, but usually you can't beat the service and knowledge they have.