I don't really have a favorite as i love both felines and canines just the same. But if i had to choose what one i would prefer to role play in i would most likely say a pride, hence i have a lover for panthers, lions, leopards, tigers and mountain lions. But pack are fun to but prides for me are a lot more entertaining, as packs its most like your common wolf pack that don't really stay on the lines of being realistic or literate and usually die out quite quick (Well the ones iv'e been in do). But if others made a variety of packs like African Wild Dogs, Dingo's, Dog packs and stayed more realistic etc i think they would be quite entertaining and interesting.