Not an expert here but isn't bitcoin's only andvatage the first place and amount of miners?
BCH is just another altcoin and there are much better ones, and it is not the first bitcoin and it doesnt have bitcoin's miner base. Sure it is better in technology than bitcoin but if you compare it to other altcoins then..
It's no better in technology than bitcoin, they just have a few developpers that just change the block size, not that difficult ... and have probably no idea how the whole code is working ... this project is going to slowly die as the core bitcoin will gradually improve ...
BCH controls all the mining.