Crosses, yield, node spacing, color variances, stone type, what it's best used for in a medicinal fashion:
Gorilla Grape is mostly sativa, Purple Urkle x Double Purple Doja (if Outlaw Genetics).. tight nodes if genetics are true
Grape Ape is indica dominant.. Afghani x Skunk #1, super tight nodes if genetics are true
(The above assumes that the strain(s) you may wish to acquire at some/any point are not knock-offs, or are renamed from something else in an attempt to sell it to you. Always do background on the breeder in question before you run off and buy seeds to avoid any potential rip off or disappointment.)