A Man Alone. Sheppard plays a deadly game of cat-and-mouse with Commander Kolya and his Genii strike force, picking off enemy invaders and giving the others a chance to retake Atlantis.

From: “The Storm”

54% of the vote

Regrets. Knowing he may not survive the impending siege, Rodney records a thoughtful goodbye to his sister Jeannie, regretful that they had not been closer.

From: “Letters From Pegasus”

39% of the vote

Her Own Woman. After Sergeant Bates accuses her of being a spy under Wraith control, Teyla gives him a much needed punch in the face.

From: “The Siege, Part 1″

66% of the vote

Change of Fate. After she is found in stasis in the city, a severely aged Weir tells her tale of going back in time, meeting Atlantis’s original inhabitants, and deciding to stay behind and give her life to save her future team.

From: “Before I Sleep”

60% of the vote

Forward Momentum. With their Puddle Jumper lodged in an open Stargate, Ford opens the rear hatch and exposes himself to the vacuum of space in order to save Sheppard from the iratus bug and get them home to Atlantis.

From: “Thirty Eight Minutes”

43% of the vote

Home Front. Ford, Teyla, and Dr. Beckett arrive in an enemy-controlled Atlantis and help Sheppard, McKay, and Weir expel Kolya and the Genii from their home — and save the city itself from a super-storm.

From: “The Eye”

47% of the vote

The Wraith

It’s no surprise that fans voted the show’s lead villains as the Best Alien Race. The Wraith were introduced as vicious, nameless creatures who suck the life energy out of their victims to sustain themselves, and who have spooky mind powers. They’re relentless, vast in numbers — and to boot, they’re hard as hell to kill.

From: “The Siege”

57% of the vote

Acastus Kolya

As if the Wraith weren’t enough of a problem, Atlantis quickly made an enemy of the Genii — who sent their most ruthless military commander to seize the city. In the process, Kolya made some very personal enemies in Major Sheppard and his team.

From: “The Eye”

79% of the vote

City of Atlantis

We almost disqualified Atlantis itself for this category, but it’s not just a city full of Ancient devices. Atlantis is one big city-ship, equipped with a stardrive enabling it to travel between worlds and even galaxies. Season One was all about discovering what mysteries lie around the next corner.

From: “Rising, Part 2″

71% of the vote

Wraith Hive Ship

Ready to match the city of Atlantis blow-for-blow is the hive, home to countless drones and “Dart” fighter craft and ruled a powerful queen. The hive is a powerful force and, after the Wraith are woken up, most deadly when it and a bunch of its friends are laying siege over the long-haul.

From: “Rising, Part 2″

49% of the vote

Michael Shanks
as Daniel Jackson

As Dr. Weir’s team discovers the secrets of the Ancient outpost in Antarctica, Daniel discovers the 8-symbol gate address that will take them to the Lost City itself. But it would be another two years before Daniel himself made it to Atlantis in “The Pegasus Project,” and four and a half years before Shanks’ return to the series in “First Contact.”

From: “Rising, Part 1″

32% of the vote

The Siege, Part 2

Since the moment the expedition woke up the dormant Wraith the clock has been counting down to this: an all-out siege of the Ancient city. Can a handful of humans from Earth with few supplies and even less knowledge of Atlantis’s systems keep the city from falling into enemy hands? It all came to an epic head in the Season One finale, which fans chose as the best episode of the year.

40% of the vote