actually i was going to post the first Gaunt's Ghost's omnibus, because i liked the first 3 books so much, im just using the Omnibus because i could not decide (and i could not mention the whole series as that is not one book, and an omnibus is *technically* one book) i just did not see this thread before
Im thinking about getting "A Thousand Sons". Anyone here that can recommend that one and maybe give a short opinion on the quality of the book?
Yes, from comments on Warhammer forums it's regarded to be one of the best in the Horus Heresy series. Not the best overall, and it has a few flaws, but it's definitely among the favourites in the series.
Besides ADB and mr Abnett (Ravenor was pretty dope), I like old Space Wolf series by William King. His style is really cool - old school novels (first 6 books from Gotrek & Felix series are some of my favorite).
The Night Lords series by far. I think Aaron Dembski-Bowden is the best writer of the Black Library, he transmits really well the atmosphere of the 41st millenium.