I know it's probably NOT a popular opinion around these parts, but I always thought the SNL cast during the early 90s was the show's best ever. Even better than the original cast from 75-80.
They had Phil Hartman, Dana Carvey, Mike Myers, Dennis Miller, Kevin Nealon and then they added people like Adam Sandler and Chris Farley. Some of my favorite sketches (like "Hans & Franz", "Sprockets", and "Wayne's World") come from this unforgettable era.