I have tasted Dang Suria/Red Morning, Excalibur Red and Borneo Red. Whole tastes are very subjective, I am sure those have have tasted all three or any combination thereof, will give differing results. As for me, I prefer Excalibur Red and Dang Suria over Borneo Red. Now to be fair, I have only tasted one Borneo Red but the one I did taste lacked the depth of flavor. I have had a number of Excalibur Reds and Dang Suria and in my opinion, the taste/quality of the fruit can vary from fruit to fruit and year to year. Both the Ex Red and Dang Suria have a consistent juiciness (whereas I have had a number of jacks that have had decent flavor but a very dry texture). They both had a complex fruit quality to them, much different than the juicyfruit or tooti fruiti/banana flavor profile. Again, the Borneo Red lacked the depth to honestly give a good description. It had a very mild, "red jackfruit" flavor but very one tracked and the flavor dies off very fast. I will repeast myself, it was only one and just could have been a bad/off fruit.
Noel - If you can get me some "good" Borneo red to try, I will gladly reciprocate.
Oh, and to those who wonder, yes, the fruit IS Red.
Harry - barring a horrible season, I will be bringing you some red jack this season (though you will have to sacrifice a Sunday).