What counts as "too much memory and resources?" Sure I get a little weary at times when Firefox happily eats up almost a gigabyte of memory, but at the same time, it's not running my system to the ground. I can still do what I want on the side. And even when I was running systems with a paltry 2GB (and this was during the time Firefox was "notorious" for memory leaks), I could still do what I wanted. But at the end of the day, Firefox has not grinded my system to a halt and I need to stop worrying that I'm not below some percentage of usage.
Anyway, which of the three are most secure? Neither. Most of the security exploits you'll encounter is because you did the action. You clicked on the link. The person who made the malignant script or whatever found an exploit and all it takes to get your computer compromised is a little social engineering.
Also, Chrome doesn't have anything like NoScript. It has some script blockers, but they're nothing near NoScrpt. And to be honest, I stopped using it because it was a hassle to whitelist everything, I'm cautious about what I do on the internet if I'm going after unfamiliar territory, and I have an IP filter set up.
So the whole point of this is: you're stuck with Firefox if you want NoScript.