so what should i buy now? bch abc or bch sv?

which one will go to moon?
SV for the long term investment, it will scale better. Locked down protocol means more enterprises will be confident in building something on top of the protocol. Unlike ABC who's devs want to make changes to the protocol every 6 months.
but i think a battle between Bitcoin SV and Bitcoin ABC , is currently trailing in the battle for the largest share of the networks hashing power and right now, ABC controls BCH , bch abc will win
Well think about it this way, with DSV there comes legal issues. SV is the closest thing to the original bitcoin available. Remember also that a lot of the hash power on ABC is rented hash power from btc mining pools. SV can scale for the world, and as for the hash rate. Squire mining will supposedly be releasing new asics next year that are 50% more efficient than anything on the market. That could be rumor though, I guess only time will tell.