What are you more comfortable with — routine and planning, or laissez-faire spontaneity?

While planning is always the logical step to go about in anything, logic doesn’t always work and at times the pleasure with spontaneity is like nothing else. While I too am at ease with things going in order, in reality I actually like things just happening. But reality is there is never something ‘fully according to plan’ and ‘totally spontaneous’, it always has bit of both (in varying proportions that is).