I ran across this chart today and wanted to share it.
You can actually choose a lot more than just these two; they're side by side for easy reference
Bitinfocharts is a site that allows you to select from about 20-30 different cryptocurrencies and compare them side by side.
This is an incredibly useful tool-far more useful, I think, than market cap. For instance, look above: you can see the comparison of transactions processed by bitcoin, and the number processed by bitcoin cash in the past 24 hours. But neither of them have the most daily transactions-that crown goes to ethereum, which is over 750,000!
There's a ton of other data to look at. You can select Dash, Monero and Zcash if you want to look at the three leading privacy coins and see how they rack up against one another. Tired of reading fud on the forums? This is the tool you need to make informed decisions. Check it out, and let me know in the comments what factors you're looking for in a token!