most likely 99% of the participants will vote for the tranny they currently have (man/auto).
Well most tranny's were men(man) at one time.
If you were to do a poll, I think you'll find that the ratio is around 75/25 for manual transmissions. Not until fairly recently have automatics come out of the dark ages on Jeeps. Although you can say that the automatics available were stronger then many of the manuals offered along with them. If you look at most of the rock buggies you'll probably find more are automatics. Desert racers are more likely going to be automatics as well.
If I was going to do an engine swap and the engine had a 4-speed OD automatic on it, I wouldn't hesitate installing it.