Dogecoin was originally devised as a Bitcoin piss-take, but humourously intended or not, it's value has soared over the years with the crypto enjoying a market cap in excess of $1.5bn. Even many exchanges like Cryptopia exchange allows the use of dogecoin to buy other coins.
Ripple connects banks, payment providers, digital asset exchanges via ripplenet to send money globally. Also as more and more banks adopt ripple , it's price will definitely moonshot.
So definitely ripple has a brighter future as compared to dogecoin.