I love the Hazelnut Coffee w/whipped cream and CDB Coffee. I can't really detect coffee itself in the CDB Coffee, it's just a deeper, smoother, richer taste IMO. The Hazelnut Coffee has coffee flavor but it's not dominant.
I also like the Coffee w/cream but I think it does taste exactly like coffee. The Caramel Coffee is good but it's my least favorite of the four...I sometimes find it too strong/harsh. I add New Marshmallow or Cream to it to smooth it out.
It should be noted that I adore coffee and believe it to be the Elixir of Life. YMMV.
Edit to add ~ Thy, I'll be interested to know how you like the CDBC. I love it even more than CDB.