This depends upon the individual circumstances. Certainly an open area wildlife park with good veterinary care, safe divisions of spaces between animals that cannot be together, and abundant and easily accessible food and water is better than a "postage-stamp" style zoo where are animals are caged in small enclosures with little to no mental stimulation, few or occasional veterinary visitations, and improper food, water, and opportunities for exercise. There are many "in between" scenarios. I have seen "parks" that were no more than loose collections of exotic animals that were poorly cared for and were more lethargic and disinterested in their environment than some zoos where I saw vibrantly animals that were actively engaged in play and responded well to their "personal" keepers. There is no single answer to your question.
This depends upon the individual circumstances. Certainly an open area wildlife park with good veterinary care, safe divisions of spaces between animals that cannot be together, and abundant and easily accessible food and water is better than a "postage-stamp" style zoo where are animals are caged in small enclosures with little to no mental stimulation, few or occasional veterinary visitations, and improper food, water, and opportunities for exercise. There are many "in between" scenarios. I have seen "parks" that were no more than loose collections of exotic animals that were poorly cared for and were more lethargic and disinterested in their environment than some zoos where I saw vibrantly animals that were actively engaged in play and responded well to their "personal" keepers. There is no single answer to your question.