If you're going to invest in bonds and just buy and hold until maturity, unless they are junk bonds, you probably would make more money and stock market. On the other hand, if you are buying and selling bonds, you could also make a lot of money.
So what should you invest in? There is a lot more information to learn about the stock market and there is the bond market. When you think of investing, you probably think of stocks, even though bonds are just as easily investment. It's really just a matter of preference.
If you want taking her father, there is still tons more investments out there such as derivatives, foreign currency, real estate, mutual funds, etc. You need to invest in what you think you can know the best and most from. Also you always need to keep risk in mind.