Hi Pooswa,
Post #2 here along with post #2 here and post #4 here goes into more about the differences between a latex/polyfoam hybrid and an all latex mattress and some of the tradeoffs that may be involved and to perhaps give you a better sense of which you would prefer.
While I’ve seen people who didn’t notice any difference between an innerspring/latex hybrid, a polyfoam/latex hybrid, and an all latex mattress, I think it’s fairly safe to say that most people would be able to feel a difference in both feel and performance yes and there would also be some differences that were less obvious in the short term but more noticeable in the long term (such as the support in different sleeping positions and durability).
In the end … it would be a matter of preference as you mentioned but perhaps even more about the tradeoffs between the two different types of support layers and price and ideally testing both types of material combinations to see how much of a difference you can notice (and would be worth paying for).
Thank you … and back to you 
Phoenix