well, both are good platforms for investing your money, but I would prefer an online investing system because in the modern area of technology you can earn more money using online investment. and at this time majority of people have their own computer or laptops.so I think that online investing is good from offline investment.There are different ways you can invest your money. You can invest in a mutual fund either through online or offline. If you are computer savvy, you may opt for the online mode, and do everything from your personal computer. If you prefer the old-world method, you may opt for the offline mode. In a nutshell you can go with whatever suits you.