Bitcoin is way better than bitcoincash. Everyone can see that bitcoin is even popular and stronger than it. It has also many users and there are a lot of wallet you can use for Bitcoin.
So i would go for bitcoin, because bitcoin is already back at his price, and bch is dropping.
None of this actually matters for me. The only negative with Bitcoin Cash (as far as I am concerned) is that it gives the big miners too much power and completely pushes out the medium scale and small scale miners. And there are plenty of wallets where you can store BCH. You can go for hardware wallets such as Ledger and Trezor, or online wallets such as Blockchain.info.