Back on topic, I do eagerly await the OPs results, this should be informative.
Silk or hemp? 
You must be a D&D player, only they ask silk or hemp, and them precede to tell you about a +2 circumstance checks to using silk rope. Good news my rope use check way exceeds the necessary to tie an effective noose, I will take a 10 on this one, scratch that, I will take my time and take a 20. Perhaps then I will check high enough for a circumstance bonus when using that knot, please don't make the DM a jerk on this one! Frayed knot, the DM will probably leave me high and dry on this one.
I was thinking paracord, the strength and stretch might be important. Might have to make an REI run, no more general stores that always sell hemp or silk rope only and always at the same price.
Don't worry about being off topic, I am not going to lock this thread any time soon, and I have the unlock button if anyone else interferes. That said I am going to *try* to settle down a bit.