In yesterday's class, Javier asked if there were any important difference in the use of the words "biggest" and "largest". I ran a search on the Corpus of Contemporary American English to compare the most frequent nouns that combine with the two words.
You can see the result in the screen shots below. Notice that according to corpus data, "biggest" is much more frequent than "largest", whereas "largest" seems to be used more frequently in formal contexts. You'll also notice that the most frequent collocations (i.e. words that they combine with) are quite different.