Hey what's up

This is my basil, I know that it isn't the best looking one but it seems healthier than ever. I just need your suggestions to make it have bigger and bushier leaves. For some odd reason, the top of one plant is dead while some part of it is not dead. Also, I know that they are too close together, I just sprinkled the seeds when I started it.

http://i.imgur.com/xzh8W.jpg

Here are my saplings, 2 are doing well while the other 2 aren't doing well. I'm planning to transfer those to the outside and not in a pot, although I've been putting it off for a while now. I also noticed that I placed the other 2 saplings too close again, so I ask what to do about it. I was thinking that I just place one farther from the other but still in the same pot. I only have those 2 sadly. One last thing, when should I do my first prune?

http://i.imgur.com/k0o6I.jpg

Top view

http://i.imgur.com/uutld.jpg

Thanks