Which one is the easiest to transfer on the blockchain in terms of gas fees? Or do they both cost roughly the same amount.

For larger investors (in the $000's per transaction) the fees probably don't matter, but for small investors gas fees are a big turn-off. To be honest, that's why I've stayed away from using various altcoins on the ETH / ERC20 network where you can't then transfer them out to an exchange to trade/swap.