Possible loot you could win include:
A Multitude of building blocks ready to use.
Impossible to acquire NEW materials
Concrete, Redstone, Garden & Villager kit boxes
Unique Armor Sets & Tools
Game Modifiers (CEs & Scrolls)
Super Potions (4-8 Buffs Up to 25 mins)
Item Frame Toggle tool (Invisible frames)
Better NPC Trading
Rarer Ores (New & Old)
. . . & soooo much more