I think each player would find a different benefit and have a different opinion, and I guess there is a different kind of village for each leadership style, but I find this question very interesting and would love to hear another answers, so here I tell you what I think.
If the village is internally organized, the team work makes the individuall effort to be much more productive. IDK how exactly to say it in English, but there is synergy.
If the village is a peacefull one, where players do have nice relationships with other villages, trade is much easier and with less risks.
If the village is strong, they will retaliate if any member suffers an attack.
If their members are united, will teach new ones how to deffend themselves and will help with gear.
If you are a new player you might find security (maybe even a walled plot that can have housing), also information about where are the nodes and how to get your resources, maybe give you seeds and cattle.
if the village has some sense of comunity the leaders will organize a defense when facing any major attack.
Now you can ask which would be the facts against joing a village too.
