31337. You spawn in a jungle right near a plains biome filled with sheep. A forest biome is in walking distance. Taiga off to the north a bit, desert off to the south, both noticable within eyesight. This is absolutely the perfect match for what you need!
Extreme hills off to north east, small village off to the west. 2 different exposed ravines near spawn opening to a couple large caverns.
Cows to the south east and in the taiga biome, pigs and chickens to the west beyond the forest. Stay in the plains biome, and you'll see everything you need.
This is the seed I am using for my adventure map Order of the Stone.