I would rather be good in multiple skills, and here is why:
1. It makes for a well-rounded person
2. It greatly enriches my 'me" time
3. I honestly would get bored if I was just good at one thing
4. You never know what information can be useful in the future.
I am absolutely HORRIBLE at math...well calculus that is, but to make up for that, I am a good singer, writer, artist, good at memorizing and taking in information, good at chemistry and life sciences, and can speak three languages. I wouldn't have it the other way around, unless I wanted to be an engineer or something along that line. My friend excelled in calculus in high school, but their gpa fell far below mine, despite the fact I was scraping a D in that class, but all my other grades were As...Bottom line is that well-roundedness for the most part, will get you the farthest in life