In Japanese, when making a comparison, the adjective keeps its original form. There is no alteration, as in "great/greater." The comparison is expressed by adding something to the noun.
AのほうがBより(property)。 A is more (property) than B.
Elvis Presley is more hip than Frank Sinatra.
You can ask for another person's opinion on two things in comparitive terms:
AとBとどっちのほうが (property)。 Between A and B, which is more (property)?
Which is cheaper, going by bus or by train?
When comparing three or more items, the degree qualifier いちばん is used.
[(class of items) の中で] A がいちばん (property).
A is the most (property) [among (a class of items)]
Between yakisoba, udon, and rice, which do you like the best?