Common and Difference : Objective

Of the twelve Alwars, 3 of them are different from the others.They are
Thiruppaan Alwar, Andal (Kodhai Naachiyaar) and Madhurakavi Alwar.
Their Works Were small and concise set of verses which has all Bhakthi,
the crux of the Vedas and the way to Mukthi.

Objective : To Cover the Shortest Way to Perumal

On the other hand the other Alwars had written a lot (Hundreds and
Thousands) and one have to read all of them to understand same aspect.

Objective : To Cover All the Ways to Perumal