I'll see your leaf and raise you 23
I hated doing it, but I don't usually grow this many at a time, so it's an adjustment. The fan leaves on the main stem are gone except for the very top.
All the same fan leaves have been pruned on each, so just looking at the top set on each, the 2 on the left are clearly ahead. FF Original Trio in the front, Gen Hydro in the back. But still, it will depend on how healthy they stay and how fat the flowers are
And I was going to do some training, but after the fan leaves were gone it wasn't really necessary. The one front right (FF Gringo Rasta) is the only one that might need some LST. the other 3 were spread out, but on that one all the stems are nearly vertical and crowding the main stem.