The High Elves were once apart of the Night Elves, but then as the High Elves began delving into deeper and more arcane magics the Night Elves banished them for their seeking to gain knowledge and power through anything but Elune (the Goddess of nature).
A Sunwell is basically a magical energy source fed on by the High Elves and Blood Elves. Its their version of a Moonwell Hope it helped ;)
The Blood Elves are a race in WoW, one of ten. They were originally Night Elves who taught the humans magic, and became the High Elves, and then got crippled by the destruction of the Sunwell. Hope it helped ;)
Silvermoon is the capital city for the Blood Elves.
The best dancer for each faction would be: Female Blood Elves Male Night Elves
Darnassus is the capital of the mighty Night Elves. Its in a tree. Its pretty cool ;)
Kalimdor is the western continent of the world of Azeroth, and primary home for the Night Elves and the Highborne from which they descend.
The two main factions of World of Warcraft that are player controlled are Alliance and the Horde. The Alliance consists of Humans, Night Elves, Dranaei, Dwarves and Gnomes while the Horde consists of Orcs, Tauren, Trolls, Blood Elves and the Undead (Forsaken).
Dalaran is a magocratic city in the World of Warcraft universe. The city is used as a front to attack the Lich King's armies and is inhabited by humans, high elves, gnomes, and goblins.
Elune is the major deity worshiped by the Night Elves. Check the related link for more information.
The Alliance is one of the two sides in world of warcraft. Alliance and Horde. The alliance consists of Human, Dranaei, Dwarves, Night Elves, and Gnomes. It will soon also include Worgen with the upcoming expansion.
Blood Elves only exist in the World of War Craft gaming world. In this world they are direct descendants of high elves. They often make enemies due to their arrogance.
None. None of the three races is necessarily stronger or weaker than another. Typically, it is seen as Night Elves having more power over nature, High Elves having more power over the Light, and Blood Elves having more power over Arcane and Fire, but even this is a generalization. All three races are powerful, but their power cannot be compared to one another. Also, though the Blood Elves seem to be more willing to use their magic in near-reckless ways, the Night Elves and High Elves usually choose to refrain from destructive magic. There isn't any true "stronger" race among the Blood Elves, High Elves, and Night Elves, there are just differences among the three races, just as with all the races in the Warcraft storyline.