Not bragging,but being a chef,I've dealt with organs and offal more than most.
No way is the heart or tongue the best part.Takes some experience,but you can make anything edible,even good.

Slap on some sauce and a french name,and it sounds exotic,and people will pay a lot for it.

I can eat pizza every saturday and never get tired of it,even a cold slice for breakfast.Every week.
A cold boiled tongue sandwich,liver and onions,smothered thymus gland,brains and scrambled eggs..once every 5 years is fine with me.