Anonymous many, much and a lot of, lots of 'a lot of' and 'lots of' are generally interchangeable variants. My personal preference is usually for 'a lot of'. To my ear, 'lots of' is more often used casually to show greater enthusiasm, though others may differ on this point.
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Anonymousmany, much and a lot of, lots of'a lot of' and 'lots of' are generally interchangeable variants. My personal preference is usually for 'a lot of'. To my ear, 'lots of' is more often used casually to show greater enthusiasm, though others may differ on this point.