I can only say that I have played DD for a week (happy lvl 17 <img src="/ubbthreads/images/graemlins/delight.gif" alt="" />)and I have had more fun than I had playing LH for a couple of months (didn't like the linear story and the unpersonal, stiff conversation).
Ubereil
PS still think Arcanum is better than DD
It is true that we all have gone into the matter of taste. I myself as a historian amateur really like that alternate history. About conversation in LH, can you put an example to show their stiffness? I personally think that the voice-acting in LH is the best I know, I am still thrilled with the bigot-Castillian-accented voice of the old dude Tomas de Torquemada. I think the best voice-acting in DD may be that of Kroxy.
Glancealot, I am to play Beyond Divinity, so I have to put aside Morrowind. thanks for your suggestion anyway.