IPFS is better IMO because it makes sure there is no duplication and then it has a HTTP interface.
what duplication? one hash -> one file anyway. also, ipfs is going to be integrated with filecoin, which I do not think is valuable in case of memo protocol.
I guess you don't need to use Filecoin. Am I wrong?
Right now filecoin is not ready, but afaik integration of filecoin with ipfs is the ultimate goal.
