Festen has the Music Box, QMAN.
And as for the question of why does it matter which theatre, some shows are not a perfect match for certain theatres, and shouldn't just grab any house, just because it becomes available. The charms of a mid-sized musical like Drowsy might feel lost in the vast Hilton Theatre, which has so far generally played host to large spectacle shows with casts of 50+ people. Drowsy would probably be better both economically and artistically in a 1,200-1,400 seat theatre.
Begin at the beginning and go on till you come to the end: then stop.