Similar plugins - which one(s) to use?

For a new BuddyPress site (non-MultiSite), which plugin(s) should I use?

Calendar:
https://premium.wpmudev.org/project/buddypress-group-calendar
or
https://premium.wpmudev.org/project/events-and-booking
or
use them both together

Email:

https://premium.wpmudev.org/project/mass-email-sender/
or
https://premium.wpmudev.org/project/e-newsletter

Batch New User Creation:
https://premium.wpmudev.org/project/batch-create
or
https://premium.wpmudev.org/project/add-new-users
or
https://premium.wpmudev.org/project/blog-and-user-creator