The decision is yours, but I don't think that Bitcoin SV has anything real to offer. Ethereum, on the other hand, does. And, with Ethereum 2.0 on the way, it will likely become much more modern, which is its only real flaw right now. Not to mention that even in this state, Ethereum still dominates as a development platform, and the fabled 'Ethereum killer' is nowhere to be found. Shortly, I would say that ETH is a better option.
I totally agree with you here mate, Bitcoin SV offers us a speculative potential on the other hand ETH gives us Innovation, Discovery and Adoption that is real and needed.
Bitcoin SV has potential because of its popularity but ETH gives us more than that, ETH is a better option in fundamentals and technical.