BSV is the Bitcoin that hews closest to the original Bitcoin protocol design.
I see special people on Twitter quoting this all the time.
Just because it's in some marketting blurb for a shitcoin does not make it a fact. BSV is pure crystalized shit. BCH is distilled shit. End of story.
There is only BTC.
A 51% attack on either BSV or BCH is utterly trivial to the truly motivated.