Rickrollin
If you̵7;re looking for a lot of exploration and mining tons of minerals and gems, this is a good seed to go with. It offers diamonds and a dozen or so other resources. There are two temples to explore -- one in a jungle biome and another in a desert. You can find a zombie dungeon if you̵7;re seeking trouble, or you can head to a village to loot a blacksmith's chests.
Diamondhunter
For those out for a treasure trove of loot and goodies, Diamondhunter offers materials galore. Obsidian, iron ingots and horse armor are just a few highlights. Within the seed, you̵7;ll find three villages, two of which include blacksmiths. There̵7;s also a sandstone temple. Deep within the temple you̵7;ll find treasures that include four chests with gold and iron ingots, more horse armor, an enchanted book and gems.
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Perhaps one of the most prolific seeds in terms of loot, this seed has over 100 gold and iron ingots, about a dozen emeralds and roughly two dozen diamonds within the main strongholds and random locations. This seed̵7;s topography is mostly flat, with a combination of jungle and snowy terrain.
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The topography of this seed world offers interesting building possibilities. High-pitched mountains, caves, a waterfall, a lava pit and a half-buried temple are the highlights of this region. There̵7;s a snow biome in addition to the mountainous region, making this seed a good choice whether you want to build or simply loot and run. The treasure of the day in this seed is diamonds, though you̵7;ll find plenty of other materials as well.