Hi B Feelgood,
The choice between different types and blends of latex in any layer of a mattress is more of a preference and a budget choice than a “better/worse” choice. There is more about how Dunlop and Talalay compare in general terms in post #7 here but the best way to know which type of latex you tend to prefer will be based on your own local testing or you own personal experience because different people can have very different preferences.
Phoenix