Subject: What makes a paper towel stronger than another?

I am doing a science project on what brand of paper towel is the 
strongest. I need more info on what makes a paper towel stronger than 
another. I am going to test Brawny, Bounty, Mardi Gras, and Target. I am 
going to wet them and put a weight on them to see which one holds longer. 
I would really appreciate it if you would get back to me on that. Thanx.

Re: What makes a paper towel stronger than another?