sunnyd - This seed starts you on in a dense forest area if you explore further you will find a large mountainous terrain with surface caves around them.

pasta - This seed starts you off on a grassy plain will a huge single mountain surrounded by water,  also there a weird floating block formation that looks like an un-finished mountain. Few pumpkin patches too along with a massive cave system.

lemonlime -  This seed started me off on the side of a mountain, There are also complex side mountain cave systems...beware, on has a huge almost hidden hole in it

milkyhands - This world seed start you off in a vast snowy wilderness with frozen ponds and lakes, there are a few trees and and some surface cobblestone here too.

QWERTY - This code started me off at a small pond of water, with a large dessert nearby. Also found a pumpkin patch quite close to the start off point. Quite big cave system in this one too!

The world seeds are custom codes that generate the worlds in Minecraft. If you don't put a seed code in then you will get a random world to play on. All of the seeds are case sensitive and will not work if you don't not include capital letters

hell - This ones a pretty good seed, it has a lot of lava around. you may find obsidian due to the lava being close to a water source

This is a page dedicated to Minecraft seeds for the Xbox 360
I will be detailing the environments of the seeds/worlds when i explore them.