Seth is a smarter than Sai, and consequently he did worse in the job interview.

Who is "he" in this prior sentence?
Sai
Bethesda launched a new title, Skyrim, to raving reviews by gamers so they will now most likely buy their next title as well.

Who is "they" in this prior sentence?
gamers
John kicked Bill because he was angry.

Who is "he" in this prior sentence?

John