Which bottles are worse, 1's or 7's?

With all the controversy lately and closely of research done on my part, it is clear that bottles numbered 1-5 and presently 7 are harmful. My cross-question is, which it worse? The danger of Nalgene bottles have not yet be confirmed, but we've known something like regular water bottle harms for a while. For the time person, which one should I use? It's #7 i just wrote a conservatory paper give or take a few it. and nalagenes are made of #7. its okay to use them, just be sure that you never go off a water bottle sitting within the sun because it will cause chemical leaching, which is where on earth the chemical in the plastic leaches into your hose and it has be shown to cause birth defect in babies, and have been connected to cancer. it is also good to buy a unknown nalagene bottle every once in a while because when it get scratched and after being reused and wash in a dishwasher and getting bang around for so long, the plastic wears down and it is easier for microbes to get surrounded by your water. so only just buy a new bottle every once within a while and never leave your bottle surrounded by the hot sun and you should be fine. :]]
a glass bottle