Buses and Express buses on an elevated guideway are superior to rail in every category and therefore better for TODs.  Since they are faster, have more seats, are more quiet, cheaper to run, safer for seniors and juniors - they will attract more riders - which is the goal of developing TODs.  With buses and TODs in Hawaii, the stations would be at ground level.  This will allow the buses to travel at 60mph on the elevated portion.  Rail will average between 26-28 mph.  Travel time is a main criteria in deciding to use transit.