Melon seeds are really cool. Packed with protein, fats, and several useful minerals. Arguably the perfect size for snacking or planting, the husk is edible (unlike some other seeds!) and contains a nice amount of fiber. Bonus feature is that you can harness rainwater and the sun to grow quite tasty fruit from it, and get more seeds to eat or plant!

Though all seriousness aside; I quite like the seed "JRRTolkien" for exploration, as it starts you off on a humongous landmass with a lake next to spawn and a myriad of scenic rivers to use if you don't want to sail all the way around the island. It has a large mountain range north of spawn that is nestling a saltwater lake. Boss spawns aren't the best, but they are all fairly close to the spawn island.

The landscape by spawn is very hilly and fun to navigate, and I believe it gets flatter on the southern part of the island, but I may be wrong!