I'm late to the party, I know, but I just finally, for the first time, got 100 Conjuration and Dead Thrall, and well I'm pretty much loving it.
I know this probably isn't a big deal to anyone else, but I am absolutely loving having a customizable army following me all across Tamriel and Solstheim. Even more so when my army of undead can summon undead minions of their own.