It isn't the only way, but...
... I like the Weaver for three reasons.
1) Some very helpful Marine instructors taught me, at the range, that it worked very well.
2) The stance is very similar, footwork and body position wise, to a boxing or kickboxing stance, so the balance feels natural.
3) I shoot pretty well from Weaver.
That said, you might find isosceles or some other method works best for you. Also, it's good to experiment and find out what works best under differing conditions.
Cheers,
M