I am a total sucker for the chaplain with a jump pack. I love the fluff of chaplains and I enjoy jumo infantry so its a winning combo for me.
I fully agree. The Jump Chaplain doesn't just kick ass on the battlefield, he looks badass doing it.
Then there is the Macharius Heavy Tank with a vulcan mega-bolter. It's such a beautiful tank.
The Reaver Titan is also epic. So epic, in fact, that that is all I'll say about it.