Sandman is not my favorite villain. I've always saw him as a Clayface knock-off from the Batman series. But Spectacular Spider-Man has done some really (really) creative things with him, which have made for some excellent action sequences. But besides just the great fighting, Marko has seemed to have grown in character and besides sarificing himself to save an oil tanker, there is an especially sweet scene where he pretends to be a sand castle for little girl.
I also really liked Flash Thompson's birthday party stuff. (I'm a sucker for high school party anythings) I thought it was really clever inter-cutting the random video camera interviews, and there was even a bit of suspense in dealing with the Gwen/Parker/Harry/Liz love quadrangle. Enjoyable stuff all around