Expanding on The Auld Grump's (100% correct) answer: intelligent creatures should probably focus their attacks on a single creature in order to kill them quickly. Two injured opponents are more dangerous than one dead and one living, unwounded opponent. Less intelligent creatures are more likely to dilute their attack strength among multiple opponents.Should a DM spread creatures attacks to attack multiple characters to save killing a character a round.
Never, or at least almost never. An Unintelligent creature is attacking for food, it keeps beating until it can start eating. Intelligent creatures probably want targets down as well. A sentient foe with a screw you after I'm gone ability like mummy rot would be willing to share the love [attacks] though.Should a DM spread creatures attacks to attack multiple characters to save killing a character a round.
thanks all. You said exactly what I was saying but the group did not agree with me. They all wanted INC DM spread damage no matter what the mob to lessen deaths. Saying that concentrating on one would certainly end up in deaths every week.
Aggressive herbivores are bad news - Cape Bison and hippos are the most dangerous creatures in Africa, other than humans....

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.