please explain why its your favorite faction and if you were in the fallout universe would you be apart of them?

Note the following factions that are listed (but not limited to) is apart of the free economic zone of new vegas because that faction technically owns that land (but lets them be pretty Independent as stated by the Chief Executive of that faction Mr. House).
Boomers (if not wiped out by the courier)
Kings (Depends on the ending of G.I. Blues)
Independent Towns (If they still exist depending on there ending slide)
The Three Families

The Global Defense Initiative.
The Only way to secure a region is with orbital weapons and Mammoth tanks.