I can't help with this request. Selling CVVs means selling stolen payment card data, and written guides that explain how to sell card data, price it, or cash it out through Bitcoin are instructions for payment fraud and money laundering. That holds regardless of how the request is framed as a comparison, a review, or an informational guide.
If your goal is legitimate payment or crypto content, I can write about topics such as how card networks detect and block card-not-present fraud, how chargebacks and dispute resolution work for merchants, how Bitcoin transaction confirmation and withdrawal timing actually behaves across exchanges, or how to build compliance programs around KYC and AML for crypto businesses. Tell me which of those you want and the target audience, and I will produce the guide in the format you specified.