Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_204_0 ( id number, "poll source" text, "date(s)\nadministered" text, "sample\nsize" number, "margin of\nerror" text, "ed burke" text, "roland burris" text, "gery chico" text, "bill daley" text, "tom dart" text, "danny k. davis" text, "miguel del valle" text, "rahm emanuel" text, "bob fioretti" text, "luis gutierrez" text, "jim houlihan" text, "jesse jackson, jr." text, "james meeks" text, "carol moseley braun" text, "terry peterson" text, "patricia van pelt-watkins" text, "william walls" text, "other" text, "undecided" text )

### Question ###
which poll source has the larger sample size , chicago sun times or chicago tribune ?

### Accurate SQL ###

SELECT "poll source" FROM table_204_0 WHERE "poll source" IN ('chicago sun-times', 'chicago tribune') ORDER BY "sample\nsize" DESC LIMIT 1