If there are 2 minyanim to go to:
A- One that I know for sure has 50 people.
B- One that I know for sure only has 15 people.
Should I go to the bigger minyan so that my tefillah is more likely to be accepted because "God refuses to reject the prayer of many" (Rambam Tefillah 8:1)?
Or should I go to the smaller one to help strengthen it?
I know that many people davening together is great, but is it worth it to try to make one minyan have more people to enhance that one?