#2 is correct.
Problems with the others:
#1 - best is a superlative (used to compare more than three or more things)
#3 - best is the greatest something can be so you cannot have more of it
#4 - you either use "more" OR "better" because "more better" would be just be the best
Harper Lee characterizes Atticus as a hard working attorney who’s pretty straightforward with his children, especially scout.
One can ultimately rely on oneself to know what it right. To “trust they self” is to trust your instincts. Hope this helps :)
