Nirvana Northern Light phenos - pic included

I read that there are like three phenos in the current Nirvana Northern Light strain. I planted five seeds and it would appear that I have two different phenos, which is obvious, even when they were only a few days old.

Below is the picture. The one on the left has much fatter leafs than the one on the right. You can tell they are both Indica dominant, but they do look different.

My question for anyone with experience with this strain is which one of these two would you guess will be the better pheno?

Fatter leaves = more photosynthetic response.
also, pick whichever one has the tightest internodes.
and the thickest stem. this goes for all plants.
Hope I Helped/

Thanks, I was leaning toward the fat leaves also. Out of the five that I have growing now, three are for sure the fat leaf version. I really want to do some selective pollinating, so hopefully my luck will hold and I get a decent male and female.