In X and Y, you get exp. for catching Pokemon. Do you get the same amount of experience as you would when you defeat the same Pokemon, or less? If the ladder is true, how much less?
You would gain the same experience yield as if you defeated the Pokemon.
Tested on two Level 35 Relicanth with a Level 31 Tropius.
Defeated Relicanth: 850 Exp Points
Captured Relicanth: 850 Exp Points