We are flying into LGA in the afternoon (May) from Europe, staying 2 nights, then flying out of LGA in the early morning (6:50 AM). My plan was to use either cat-4 free nights (SpringHill LGA) or cat-5 free nights (almost any other LGA property). Can anyone who knows these hotels recommend one? We would like to be able to take the train (or bus) into Manhattan on the open day in-between our travel days.

A bit of research on my own suggested that the SpringHill would work (they seem to offer a free shuttle to the train station), although getting back from the 7-train at night could be interesting.