what a silly thread. i'm sure this will fall on deaf ears, but here is my attempt at an intelligent answer:

asking what bars are the "most comfortable" is completely meaningless. bars are only one component of proper bike fit. it is proper bike fit that makes a bike "comfortable" to ride. essentially there are three contact points on a bicycle which must be fitted to the rider, and quite a few variables that can be adjusted to fit those contact points. these are the bars, saddle and pedals.

things like crank length, seatpost setback, stem length, bar reach and drop all play into the equation, ultimately achieving a good position on the bike. rider body characteristics and flexibility are big components of the overall fit of course too, and can certainly change over time, with fitness.

OEM and the population in general have been gravitating towards compact bars, for a number of reasons. the right answer is to go get a professional fitting to dial in your contact points correctly, ignoring that, compact bars are a good place to start, but asking what is comfortable for a large group is really not very productive you your overall fit.

hope that helps.