The current "BTC" is literally legacy software that refused to upgrade based on satoshi's roadmap due to a takeover by financial entities or governments in order to hinder the adoption of crypto as a viable option in the current financial/political climate. It's now only viable for "rich" people and those willing to spend $5 in transaction fees to buy a $1 coffee, then waiting around for a conf while your coffee gets cold. (note: lightning and all those side chains are literally just alt-coins that are traded to/from btc)

Therefor you have BCH that follows the original bitcoin roadmap as intended by it's creator. And has since become considerably more useful with it's ongoing developments of smart contracts/tokens/etc.

I dunno about you, but isn't it fun to do micro-transactions and pay less than a 10th of a cent? And lets not forget 0-conf is safe for your typical every-day transactions (ie. buying coffee).

IMO the only thing that needs work is POW/Difficulty/mining - to stop another hostile takeover similar to BTC. I'd prefer if there was some "oracle" ability of non-mining nodes that can help secure the network from bad actors trying to implement stealing a tax from the reward base because they're trying to perform a transparent 51% attack based on pooled mining.