Mine is easily the Gotrek and Felix entire series.

Currently on Book 2 for Time of Legends for Sigmar. (Empire)

I was always interested in these books, they have awesome cover art, but I was too young to really get into them.
Might look into them now that I have more free time and have actually started reading again.

Not sure if it's part of Warhammer or not, but I have a drizzt book or something lying around and might try that series sometime.

Never enjoyed warhammer as much as dragonlance, but on a side note I love warhammer 40k novels, Gaunt's Ghosts, Ravenor/Eisenhorn Saga, Ciaphas Cain, etc are really enjoyable I always get drawn in to them, really gg writers in black library