Who is happier?

Person A: A totally selfish jerk that only thinks of himself... no matter what he do, he put himself as first priority... he don't care what others think... as long as he get what he wants... when a friend ask for help, he will consider for awhile thinking of his condition... or he would just reject it without thinking cause he just don't feel like helping...

Person B: A totally selfless person that no matter what he do he always think of others first before himself... he always consider others feeling and put his aside... when a friend ask for help, he would surely say yes as long as he is capable of it without thinking twice...

*The above does not particularly convey to anyone or anyone that I know*

So, who is happier?

My coursework marks sux...
a week more to go...
I'm doomed...