5050 are brighter than 3528's. Figure about 3 times brighter.
I recently purchased some 5630. They appear to be somewhere between the 3528 and 5050.
For color I like something in the 5000 range. They are hard to find. Color below 4000 are to yellow for my eyes. Colors above 6000 can be almost blue. If your fixtures have a white lens. Then higher numbered colors will work. Like most florescent fixtures have.
Most of our lights are used for work area's. For reading and accent lights we use under cabinet lights. But none with color less than 5000 kelvins.