I am happy the Dire Avengers got rejuvenated in the latest codex. I love 10 man squads of these guys either foot slogging across the battlefield, or jumping out of a wave serpent to bladestorm the life out of an enemy squad. I almost always take the exarch with bladestorm and two shuriken catapults. If these guys are stuck in close combat, then I am doing something wrong. I would rather ensure they hit a squad hard, destroy it, and get back in the waveserpent to do it again.
This squad are some of the originals from 1990 or so. I added an old guardian/pirate leader from the original RT eldar. I love his helmet, and think he makes a great exarch.