Judging by his ratings of Alien 1 & 3 I’m assuming he prefers the horror elements of the Alien franchise instead of the sci-fi action seen in Aliens.
Not to mention the mystery in the original film. Is the xenomorph intelligent or an instinct-driven beast? Alien left that question open, but Aliens had to came along and make the xenomorphs giant termites – nothing more, nothing less. It cheapens the creature in my book.
Also, I hated most of the characters in Aliens; I wanted almost all the soldier characters dead as soon as they opened their mouths.