Hi cw2697,
Latex in general is the most durable of all the foam materials (latex foam, memory foam, polyfoam) regardless of whether it is Dunlop or Talalay or is made from natural rubber, synthetic rubber, or a blend of both so the choice between different types and blends of latex is more of a preference and budget choice than a “better/worse” choice. There is more about the different types and blends of latex in post #6 here.
While there is no way to specifically quantify how long any mattress will last for a specific person or predict exactly when they will decide to replace it because it is no longer suitable or comfortable for them (because this is the only real measure of durability or the useful life of a mattress that really matters) and because there are too many unknowns and variables involved that are unique to each person … if a mattress is well inside a suitable comfort/support range and isn’t close to the edge of being too soft when it is new (see post #2 here) and you have confirmed that it meets the minimum quality/durability specs that are suggested in the guidelines here then it would be reasonable to expect a useful lifetime in the range of 7 - 10 years and with higher quality and more durable materials like latex or higher density memory foam or polyfoam (in the comfort layers especially) it would likely be in the higher end of the range or even longer and the chances that you would have additional “bonus time” beyond that would be higher as well.
There is also more detailed information about the variables that can affect the durability and useful life of a mattress (and the materials inside it) in post #4 here and the posts it links to as well.
No .,… if anything it would tend to hold up better than most other types of materials and components that are generally used in the industry.
Phoenix