Here is my current Blood Angels deathstar I have been messing around with lately:
5x Death Company/jump packs, 4x power weapon, power fist & infernus pistol
Death Company dreadnaught/heavy flamer
Stormraven/extra armor, twin linked lascannon, twin linked multi-melta
Remember that if the gunship moves 12" or less then the DC dreadnaught can disembark for 2", fleet up to 6" & then assault another 6" - that's a grant total of 26"!
This bundled unit has come about based upon playtesting & talking to others. I fondly refer to it as the BBF pattern DC unit. It can drop just about any unit including a large squad of Thunderwolves lead by a Wolf Lord with Saga of hte Bear. That's really saying something too. I am not an advocate of Blood Talons because the good old DCCW can instagib TWC & you have a huge advantage versus other walkers.
The beauty of the Stormraven is you can deliver this unit right where you want it.
My second unit is Astrorath leading a squad of Sanguinary Guard (chapter banner, 2x infernus pistol & power fist) with a Librarian Furioso. The mechanized psyker has Blood Lance & Wings of Sanguinius. The SG unfortunately don't benefit from FNP but they can also cut through just about anything. The BBF patterned DC are the heavy hitters though for sure.
I encourage others to try out these units. They are tons of fun!