I prefer Cardano. Both are solid projects, strong team etc... but
ADA is
1- One of the 10 biggest coins according to total marketcap data
2- Easier to buy for retail/institutional buyers
3- ADA/BTC price is relatively cheaper than ETN/BTC price according to all-time-high statistics.
4- High probability for ADA ETF in the next years
I also suggest for Cardano (ADA). The three sentence are true, I like your speech. And Cardano (ADA) marketcap is
$2,175,695,689 USD
331,143 BTC Right now.
Cardano (ADA) listed more than 45 crypto exchange site. It has so big chance to increase price. And after few years Cardano (year) will be $5 or more (I hope).