The last time the All-Star Game had guard teammates starting for a conference, it was Earl Monroe and Walt Frazier from the New York Knickerbockers in 1975. Those Knicks, as a fine 30 for 30 by Michael Rappaport informs me, were one of the greatest teams in the history of the Association. Monroe and Frazier were two all-time greats playing on basketball's biggest stage. These are facts, set in stone.
Here's another fact for you: Kyle Lowry (22.0 points per game) and DeMar DeRozan (21.4 points per game) currently lead Eastern Conference guards in scoring.