Which chapter do you think has the coolest fluff? Why?

Just curious, here.

I was reading through my Index Astartes stuff, and there are some really badass chapters.

My frontrunners are Blood Angels, Dark Angels, and Space Wolves. I love my Sallies, but they're lacking a bit.

Luna Wolves.
Alpha Legion
Space Wolves

After doing the research for my upcoming army...my first is now the Word Bearers, then Space Wolves and Luna Wolves/Black Legion

I know 1 1/2 of my picks is Chaos but really regular Space Marines just dont do it for me. I think in the books they write to make the Loyalist seem better than their Chaos brothers. I am currently reading the Souldrinker Omnibus and the author was explaining how the "Ancient" battle worn Commander was 300 years old. OK yeah that is old, but in the Dark Apostle book I just read those guys fought alongside their Primarch laying siege to Terra. Ok 10,000 year of being battle hardened or 300, I mean there really is no comparison. I know that Loyalist Marines are GW bread and butter, just wish the bad guys would get more love.

Night lords, read lord of the night and you'll see why. And the Death guard/dusk riders. The 3.5 chaos codex also has some of the best fluff ever.

Yeah, I think the whole Konrad Cruze story is sweet, too.

Hey Chad.... are any of the Primarch (Fulgrim, Angron, Magnus, Mortarion) playable as their demon form? Just curious.

Angron has apocalypse rules. I think he's the only one though.