I've discovered that Duergar Polteriat (sp?) do like to inanely concentrate on the first target they spot and can be handled with ease with additional party members.
I may use this tactic (as they are Beserkers, there could be an rp element to it - though it does stretch the boarders a tad), but it is very uncommon for my not to solo the game nowadays.
I do like to waste Party Member's spells with the aforementioned Stealth tactic, Six, when I play a theif, of course. Seems to me that is exactly what an intelligent theif would do IMO.
(I also noticed your Albuquerque reference

).