I've had different instructors teach different things.
When I was first learning to jump, we got into two point and stayed there for the whole course. The two point was so exaggerated, it was practically a jockey position, with our butts in the air and our hands half way up the neck before we even got to the jump. We then, further, did a crest release over the jump. In hindsight... this was all terrible.
Later I had a hunter coach who had us ride into the jump in a light forward seat, and give a crest release over the jump. It was much less exaggerated than my previous "two point" position, but still forward and ready.
Then, in a few lessons about three years ago, a hunter/jumper coach was like "WHAT are you doing??" when I approached the jump already in two-point. She made me sit up and ride normally right into the base of it, and then fold at the hip while giving my hands forward in a release. I actually liked this the best of all three methods -- although it does require that you are familiar enough with jumping that you can judge when the take-off is going to happen. Otherwise you risk being left behind.
For learning to jump, I feel like option two is good. You're forward enough that you can go with the jump easily, and not worry about being left behind. But you're not already so far up the horse's neck that you're going to go SPLAT easily if something goes wrong!! Option three can come later.