Is The ugly one gonna be the better one?

hard to say. some stretch a lot and others don't even between seeds of the same strain as they are like sisters not identical I'd expect anywhere between 18-40g a plant if I had to ballpark the guess in grams. Keep up the feed and don't burn em, the one plant looks to have a bit of N tox with the pointed tips on the leaves going downward.

Well let’s see. Answer in question 1 is a long answer but I’ll try to short it out. If it’s not a clone your plants will always looks different to each other even if it’s same strain! There is something called phenotypes, search for that on google. Will be a whole book if I write it down here. Even if it’s the same phenotype they can still look different because of many things. One thing can be that you stressed one girl to much that’s why she’s not the same size as ur big one. Some plants just stay small and produce many small thick buds when the bigger plants take longer time but will produce more flowers in the harvest. You may have in ur mind that the plant that don’t flower in the same speed will take longer to harvest!! Answer 2 is impossible to say my friend but of what I can see I would say maybe something between 100-200grams? So much can happen in the flowering stage that results in more or less yield! In the veg stage you can almost do what er u want with ur plant and it will recover but in the flower stage the plant will take longer to recover and will result in less yield and not as thick dens buds. So you have to give them the right amount of nutrients and don’t stress them! Just let them do what they do best. I hope my answer will help you out!

Beauty is something very subjective, it's a very human concept. Does a plant know if it is harmonious? With a 120w, with luck you will make 120gr 💪😉, but in reality it will be more 70 or 80.