system
A chat on subreddit /r/me_irl
human
Easily the mambas. 

Use the extra clothing in the mall to make chaps so they cannot bite your legs. Then use a broom to wrangle them into stomping position. 

A gorilla would wreck anyone easily.
gpt
It comes down to whether you want to hide from a gorilla or possibly fight 5 snakes. 

If the Gorilla finds you, you're done for. At least with the snakes you stand a chance of killing them all and being done for the night.