And 1 OF MY 7 PLANTS IS SATIVA!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Your plants are still seedlings, and a couple a a bit on the smaller side, so it is a bit early to be able to say for sure what anything is with complete certainty since you do not know the genetics. I have had seedlings that were smaller, runts of sorts, that looked very different for a while only because their growth lagged behind and leaves remained smaller and narrower .. and at times those slow growers or runts took off like mad and became my best plant or plants of the group. Sometimes they went on to look like the others and be just like the others and sometimes they did turn out to be a different phenotypes. But with small seedlings it is a bit early to say with any real degree of accuracy what you actually have and what it will turn out to be.
There are also times when a narrower leaved plant will give more of an indica buzz than another plant with wider leaves that can give more of a sativa high. The narrow and wide leaf way of judging is not 100% correct all of the time. If there is a major difference in leaf width and shape in plants that have reached about 8 or 10 inches or more, you can usually feel safe going by it, but in small seedlings, it still remains pretty much a guess.
I did think or or two appeared to possibly be a more sativa phenotype than the rest but still they are almost certainly a cross, an indica/sativa cross of some percentage or another, and might likely have one or maybe two that are a bit more sativa then the others, but they will still be crosses with indica in them and not a real sativa, just somewhat more sativa-ish than the others. Depending on the cross that might be good and it might not be. It all depends on what the genetics are, what was used in the cross and what traits each plant involved in the cross passed on.
Depending on what the cross is there might be numerous sativa strains that have been used over the years in an original cross that was then used to make another cross or a triple-cross that was then used to make another cross and there may have been back-crossing at some point and eventually a strain like that was used in to make the cross you have.
Here are a couple examples of what I meant ... both Cup winning indica strains ... notice the sativa used early in the chain of their creation.
Some trait or traits from the past that came from a sativa or more than one sativa may have resurfaced or became slightly more dominant in one or two of your plants so it or they might have some sativa trait or traits. It might only be in shape/structure/how it or they grow, what their buds are like and how they yield, in other words strictly appearance and the high/buzz may be just like the others. It or they might have somewhat more of a sativa high to them than the others
You will just have to wait and see, if and when you have a harvest and then dry it, cure it and smoke it. If you get that far make sure to keep any different phenotype buds separate from the rest so you will know when you smoke them and that way you will better be able to tell if there is a difference beyond appearance alone.