A bong, or a packed edible are what'll get you the most high, and for the longest duration. Edibles especially, it hits the bloodstream much faster. The time of day is a factor also. If you start smoking in the morning, by the time night comes you're gonna be a monosyllabic, red eyed, human equivelant of a sloth. If you start at night, fatigue will make you wanna fall asleep faster than the bud will, even for us insomniacs out there.