You're like an OG in the community. You must have a considerable stash. In which case, I'd rather not choose between the two. The options you've mentioned are between two hot wallets, not really the best wallets to hodl.
This isn't the old days anymore. If blockchain.com's wallet was safe enough back in 2012, it's already a completely different story today. (1) Bitcoin is becoming too valuable to risk being kept in a web-based wallet and, of course, (2) there are already safe and cheap hardware wallets out there.
Blockchain.com (formerly as blockchain.info) wallet is a close-source non custodial wallet.
Between an open-source and a close-source, your choice must be clear and very easy, it goes to open-source.
If I'm not mistaken, blockchain.com's DeFi wallet is open-source.