On 1.7 (could work for other versions), try 1180263350 as the seed. Pros:
-Zombie dungeon near spawn: chests usually contain an Enchanted Apple and a bucket
-Buired Treasure at 1544, 60-ish, -216 (spawn is 1512, 65-70, 20)
-Several more Buired Treasures
-Ice Biome near spawn
-Slime spawning swamp
-Spider dungeon relatively near spawn
-If you build a portal near spawn, the Fortress is somewhat close
That's all I had time for.