Dinobelly, get out of here and stop giving hippie love advice with no actual help. After seeing your posts, I feel compelled to actually help this guy.
Don't take off the leaves unless they are falling off, ever. If you run your finger across it and it falls off, then take it off. When the plant is done using it, it'll let go. But, there are times when cutting leaves is beneficial to plant growth and can sometimes stimulate vegetative and root growth, but that's when your plants are doing well, not when they are trying to heal themselves. When your plants get better, we can talk about topping and FIMMing and stuff.
Dude, so we can really help you, what are:
1. Nutrients, additives & nutrient levels
2. pH
3. Temperature
4. Light and distance from the plants.
The second and fifth look like they didn't get burnt and they should do fine. The others were smaller when they got hit so they may come back, but it may take a while. And actually the first one looks like it might be a goner.
How much do you know about cloning and do you have a place for the next generation? The plant that makes it through a lot of ups and downs with a new grower and ends up still being badass smoke, is usually one that is really worth keeping.