Yes, I *strongly* believe that there has to be diversity among our alien
races...accents, political beliefs, religion, name it. I think that is VERY
important. Yes, from time to time, you want the monolithic, perfectly
homogeneous aliens, but if so, you want them to stick out a bit in contrast to
the rest.

As has been noted, there's a *big* split currently going on between the
Minbari warrior and religious castes, for instance. More will come later.

jms