nutrient help!!!

ok,so I have a limited range of nutrients that i can use and wanted to know which one was best. i have:
10-10-10
30-10-10
8-12-4
15-30-15
and if one is better than another for a different stage in growing please tell me.

Well your 30-10-10 could be good for vegging, however, it has a quite a lot of Nitrogen so take it easy
The 15-30-15 for flowering

thanks alot. that's exactly what i needed