You are comparing apples with pears. The two solutions don't have to be mutually exclusive, and could be used complimentary. What is the best technical method of implementing these solutions?
No. I'm comparing healthy apples to rotten ones. You need a soft fork + hard fork or a hard fork that incorporates both at the same time. This is the project that you're looking for:
https://bitcoinec.info/Do you not think segwit could be a better implementation as a hard fork? Perhaps it could even learn some lessons from classic's flextrans features. And BU's implementation of EC could be considered over complicated, and a better KISS solution could be used.
https://bitcointalk.org/index.php?topic=1864477.msg18541674#msg18541674