Bitcoin SV, obviously!
Bitcoin SV because it is the only blockchain that scales and is actively working on achieving its potential. It is also the blockchain with the most professional community that wants to work with companies and governments not against them.
Bitcoin SV community is focused on building as this is all about the utility and not about price speculation.
There are numerous active projects in the Bitcoin SV space that actually provide something useful and there are more popping up on a daily basis.