Playground climbing nets with an attachment point on the end of all ropes are the neatest and most secure form of net. This type of net is designed specifically for nets with an angled or vertical orientation.
We use aluminium egg cross connectors that provide the strongest cross connection. The security torx screw through both ropes means that the rope will never move from the position that it is set to. We use these connections for vertical and angled nets because of the lateral forces on these cross connectors.
The type of attachment point that is used generally will depend on what you are attaching to.