I can't compare them as far as use goes, I have only used the Brute, never used the Sunspot.
Check out the size and compare, The Brute has a 8.5 inch mouth. On mine I added a screen to the bottom side and on the back footpad side to help catch tiny targets. Screen covers about 3 inches of bottom and 3 inches of back where they meet, I have caught 2 stud earrings in it so far, both clad but they showed me screen works. One was just the stud, stone was missing. With out the screen I would have chased that target till I got tired and gave up.....
I really do not have any trouble draining the sand out of mine, but the majority of my hunting is in the water, and wet sand. On land if far from the water I use the divide method with my foot and scan to locate target.