They really are beautiful. Ok thus is t an exact science. But as they said it gets easier as they flower longer.
First. Go look at each strain by flowering time. Should seperate 1 from 2 or something. One may flower 7-9 weeksish. Another maybe a 12-13 weeker.
Another thing is the smells. If i remember the fruity pack they were distinct flavors. Maybe couple of berries. That should also help.
The sativa indica arguement may not help. 1 & 2’s leaves are similar.
So. If all else fails… the best judge of them all. Smoke test. Get 3 good friends. Roll up 2 of each. N taste test them. (After a good dry n cure of course)
Eyeballing and reading the flavors: Strawberry Kush PineApple Haze n Blueberry. (Very guesswork) but i believe the Pineapple is number 3. More sativa (lanky and thinner) appearance. Long thin main cola distinct (even tho sativas generally flower longer then indica). Its a toss up with one and 2. Ive never grown any of the 3 but if you type in the strains in the search and scroll a few grows im sure you could get a rough feel til u can taste them.