Question

Which sentence is correct?

Some people like cats best than dogs.
Some people like cats better than dogs.
Some people like cats more best than dogs.
Some people like cats more better than dogs.

Answer 1

B because if you put too many words in the sentence it makes it confusing and doesn't make a lot of sense! 

Answer 2

#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