Which method will furnish the highest/lowest value?

There is no general rule of thumb that one method always produces a higher or lower value. There is an inverse relationship between interest rates and present value - the higher the interest rate, the lower the present value, and vice-versa. Since the interest rates utilized in all three methods fluctuate, any one can be higher or lower than any other one at any given time. Therefore, any of the three methods can generate a higher or lower present value on any given day.