Guard wrote:I think Dark Angels are the way forward
My advice is always to go for the models and background that appeal to you, and if that's Dark Angels with their robed Marines and their Unforgiven (Secret, Secret, they've got a secret) past, then more power to you.
However, the Dark Angels Codex is near-universally viewed as being underpowered and this is particularly noticeable in comparison to Codex Space Marines, where certain equipment works diffferently despit being ostensibly the same thing.
If you are in to the background Aspect, then the Black Library has Angels of Darkness, a stand alone novel by Gav Thorpe that gives many hints of the background.
Those hints have been fleshed out a little in the Horus Heresy series with Descent of Angels and Fallen Angels (the latter of which is excellent, the former, not so much) so if you're a fluff gamer, I recommend them.
One advantage of Dark Angels Deathwing is that it'
ss a low model count army, so if you're a slow painter you can get a decent force painted faster than some ungodly gribbly horde of Orks...