I've tried most of the downloaders on the site with a 5 star rating from snapfiles. All of them were good but had a shortcoming here or there that didn't fulfill my requirements.
Reget Deluxe on the other hand served my needs perfectly. It allows me to preconfigure site logins in the Site Manager panel and the biggest plus is it was able to resume and complete a file that was partially downloaded with the browsers standard built in downloading capabilities.
None of the other downloaders could do this for me. Top Marks for ReGet Deluxe