HOLY THAI BASIL, SWEET THAI BASIL? WE ARE SO CONFUSED

We cannot help but to order some of these basil seeds. They are on their way to the Dam to meet with Mr Washy. These herbs are tasty to the max but expensive to buy in the Dam. We have been reading about thai basils online and there are many different species. We are quite confused because different sites are calling these differently. Please shed some light if you can help us.

HORAPA SWEET BASIL?

Deep green leaves used in green and red curry and similar to basil used in Italian food.

KA PRAO HOLY BASIL?

The green leaves are used for stir fried dishes. It has a hot flavour.