It's been a long time since I posted here, and I've actually spent a heap of time thinking about Ten Little Roosters, so i thought I would post my guesses.
First I went through the poem and guessed who would match each clue:
Ten little roosters all gathered to dine
One choked on his rage and then there were nine.
Who dies: Michael.
Weapon: Poison (sting of octopus/scorpion).
Nine little roosters now running from fate
One tripped over themselves and then there were eight.
Who dies: Gavin or Chris
Weapon: Sting the Sword
Eight little roosters, two others in heaven
One was martyred and then there were seven.
Who dies: Miles, because he plays Jean, who is inspired by Joan of Arc, who was a martyr.
Weapon: Joan of Arc was burned at the stake, so either Gasoline and Fire, or Lava.
Seven little roosters, one liked to draw dicks
Life imitated art and then there were six.
Who dies: Barbara likes to draw dicks the most.
Six little roosters, some often streamed live
One died to scale and then there were five.
Who dies: Gus (full scale Gus as opposed to mini Gus).
Weapon: Scales, or Pitchfork.
Five little roosters, one trapped in the floor
One ran out of air and then there were four.
Who dies: Ryan.
Weapon: Airtight underground chamber, or a grifball.
Four little roosters still trying to flee
One got what they wanted and then there were three.
Who dies: I have no idea. Everybody wants something.
Just three roosters left
One died of a pun
Who dies: Burnie BURNS!
Weapon: Gasoline & fire, Lava, Literal red herring?
The killer was killed
And then there was one
Next I decided on who I thought would die next and the weapon:
I really thought it would be clever if the "tripped over themselves" clue meant Gavin 1 tripping over Gavin 2, but I couldn't pick a murder weapon. The other theory is Chris tripping over his hobbit feet, and the obvious weapon would be Sting the Sword. Chris also has the most lines, second to Burnie. Burnie narrates the poem, so that gives him an unfair amount of screen time over everyone else. Chris has the conversation with Gus, which is twice as long as any of the other character introductions, and is the main character in the last two scenes - the glowing sword scene, and Chris all alone. So I picked Chris to die next, and I think he will trip and fall on his sword.
Then I decided who the murderer is and who will survive:
I don't have any specific reason for these. Instead I used a process of elimination. I went through the list of suspects and crossed off any one that I linked to a death clue above. That left 2 people: Adam, and Lindsay. I should have actually had 3 people left, but when I picked Chris over Gavin I forgot to return Gavin to the list of suspects. I've only just realised as I write this.
Between Adam and Lindsay, I immediately picked Adam as the murderer. I have 4 reasons for suspecting him:
1) He is missing from every wide shot. This may have been a production problem rather than a deliberate part of the story telling. Maybe Adam had a scheduling conflict when the rest of them were shooting those scenes. I asked SixRomeo about it, and he gave a teasingly vague respone. I'll post it as a comment below.
2) He sits closest to the locked door with the peom.
3) The beard hair in the glass.
4) He has the least amount of dialogue of the entire cast. Yes, I counted. He also has the least amount of screen time because he's missing from all the wide shots. I think this was deliberate. They want us viewers to forget about Adam by hiding him behind all the others who are getting more screen time.
I have zero reasons to suspect Lindsay, so I chose Adam as the murderer, and Lindsay as the survivor.