If you can somehow describe to me why you do not believe that this person is running a better dojo, then please share it with me.
Actually, I didn't express an opinion one way or the other about which is the better dojo, and I don't have an opinion about which is the better dojo. OP mentioned an initial decision on where to train based on a)who was teaching, sensei or senior students and b)how much attention newbies got. My point is that as a newbie, you may not be getting the full picture. Things that seem one way may turn out not to mean what you thought, things that you took for "the way things are here" may be nothing but a fleeting occurrence, and things that seem important at first may turn out to be less so. That's all.