Their research tree is the most complicated of the set. However the High Elves are an elite army that relies on a relatively small number of vulnerable units that can deal a lot of damage. As starting positions go, this is as good as it gets. It's a beautiful land of rainbows, huge magical vortexes and fortresses positioned in easily defended mountain passes. If you play as High Elves in Teclis' 'easy' starting position you find yourself in the heart of the High Elf island of Ulthuan. Though it's wise not to opt for a hard campaign straight away, it's worth bearing in mind each faction's tricks and play style before you choose. It's tempting to jump into the easiest starting position, but there is more to the choice than this.
In typical Total War fashion each campaign has a difficulty rank to let you know how tough that faction's starting position is on the world map.