I've been thinking about all the various options for using Vader in Imperial Epic now. As I see it, he has three options now that are all equally viable and awesome. I'm discounting the Doomshuttle and Decivader, as there are superior options to both in Epic.
1) The Advanced. A beast in standard play, and his ability to generate crits through target locks remains awesome. However, Epic also gives a lot of options for ditching Target Locks, so I'm not sure he'll remain as effective.
2) The Vader Raider. No other ship in the game is able to generate as much "HULK SMASH" carnage as the Vader Raider, as he's able to his his ability to generate guarenteed crits on multiple attacks per round while using the Recover action to pretend it never happened. The only downside to this is that your opponent is the one who gets to decide which section takes the two damage from using his ability, so you may expose your own ship to being crippled.
3) The Gozanti. It needs a nickname. However, it's basically a Decivader on steroids. Give him a Dual Laser Turret and fire at whatever has already lost shields. With only one ship card to take damage, there's less chance of crippling yourself while still keeping that fancy Recover access. Only downsides are the low pilot skill and the single attack.
I'm partial to the Gozanti as Vader's new craft of choice, but I see arguments for all three.