In my opinion, dogecoin is slightly better for a near future investment that could yield higher returns than Ripple. Ripple (XRP) is little more stable in the market than dogecoin, and its being used by banks and some financial institutions globally.
Again, Riple has greater awareness but xrp price movement has attracted mostly financial institutions while, dogecoin might bring more market profitability, that is, in term of market trading activities.