Should I use USDT or USDC?

I'm quite perplexed about which stablecoin to choose for my crypto investments. Should I opt for USDT or USDC? Both seem to have their own advantages and disadvantages, and it's challenging to make a decision. USDT has a larger market capitalization and is more widely adopted, but I've heard concerns about its transparency and audits. On the other hand, USDC seems to have a more robust regulatory framework and stronger assurances, but it's not as widely used as USDT. Could you please help me understand the key differences between these two stablecoins and provide some guidance on which one might be more suitable for my needs? I'm looking for stability, security, and ease of use. Thank you for your assistance.