**Bitcoin (BTC)** -
99% of developer/specialist support
Far more hashrate -
http://fork.lol/pow/hashrateLarger community of users
99% of merchant support
Far less mining centralization
Far more node decentralization
Most devs Road map is for conservative scaling and focus on security , privacy and fungibility.
Current capacity allowance is 14 TPS (transactions per second) average with most txs using segwit and millions of txs per second for LN payment channels (used right now but awaiting GUI development finished for widespread use)
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**B Cash (BCH)**
One of 7 altcoin spinoffs from Bitcoin
Roadmap is focusing on cheap tx fees and many hard forks for larger capacity blocks at the risk of centralization and lower security.
Currently doesn't have transaction malleability fixed so is stuck with a mere 56TPS max throughput. Their focus is primarily on onchain scaling but do open the possibility up for L2.
Is still vulnerable to this PoW vulnerability -
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-9230 which is largely neutralized in bitcoin with segwit
Still has not balanced UTXO costs and no plans to do so.
Introduced another vulnerability with the HF called EDA