I find that a serrated edge cuts through just about everything as well as a plain edge does - provided that it's a good serrated edge.
Like a Spyderco or a Cold Steel.
Of course, chopping food and some other tasks are best done with a plain edge.
The world would be a boring place if everyone had the same opinions.

I'll admit I've never used a spyderedge, and cooking is a large part of my knife use.