$XMR if you're worried about privacy and security, $XMR is better than BTC
BTC has the most transparent Blockchain ever created, it's so public anyone can see the transactions of anybody at anytime.
it's pseudo anonymous but not private.
$XMR is pure privacy and untraceable after a few transactions made.
it has a non a defined max circulating supply, but inflation is slow, and that's good, bitcoin being deflationary will make it unusable on the future, same that happens with the economy.
the transaction fees are really low and they confirm in a few minutes
you may learn more about Monero ecosystem and discuss it here
both have pros and cons, but at a long term XMR may outcome BTC by far
remember to always DYOR.
