I've only watched the first season, and these have been my favorites:
The Lonely
Time Enough at Last
Perchance to Dream
Third from the Sun
I Shot an Arrow into the Air
The Hitch-Hiker
Elegy
The Monsters Are Due on Maple Street
Execution
A Nice Place to Visit
A Stop at Willoughby
The After Hours
A World of His Own
I'll watch a Stop at Willoughby.
Each year my daughter and I create a village with lighted houses and figures under our Christmas tree and we call the village "Willoughby" in honor of this episode.
I too love the "Howling Man" and, of course, "Twenty-two." Thirdfrom the Sun is another good one with a classic TZ twist.
