In a large bowl, beat Cheddar cheese, cream cheese, butter, garlic, basil, thyme, dill, and pepper at medium speed with a mixer until combined.
Spoon mixture onto a sheet of heavy-duty plastic wrap, and form mixture into a 10" by 3" rectangle.
Wrap tightly, and refrigerate for at least 2 hours or up to 2 days.
Unwrap log, and press pistachios onto sides of log to cover.
Serve with crackers.
To freeze ahead, place wrapped log in freezer, and freeze up to 1 month.
Remove from freezer, and let stand at room temperature for 1 hour.
Press pistachios onto sides of log as directed.