I have read "The Black Company" a while ago (the reviews on Amazon and the comparison to GRRM made me try it).
IMO the comparison to "Song of Ice and Fire" is absolutely invalid, the writing style and the type of story differ completely.

I actually did not like the book at all and did not continue after reading the first volume. It's hard to describe waht I actually disliked about it - but I could not at all get warm with the "heroes" in this book, nor did the setting seem "realistic" (whatever that means in a fantasy series).
The whole thing radiated some apocalyptic sadness and the fact that I could neither like or hate any of the characters did not help either.

I am sure some people like this style, but it is very different from books by Martin or Hobb.

Based on the reviews I also bought Steven Erikson's book recently, however, I did not get to reading it yet.

You might take a look at Tad Williams' "Memory, Sorrow and Thorn" books

Dragonbone Chair

however, they might be a bit too much fantasy-like for your taste (somewhere between Tokien and GRRM I would say)