x13 vs x15

[m3]

could someone explain the benefit of using x13 over x15? I understand X15 is encrypted with more functions and is therefore more secure but is it overkill? which algorithm is better because they are both pretty similar.

[m3]

bump anybody have any pros or cons for these algos?

[djm34]

could someone explain the benefit of using x13 over x15? I understand X15 is encrypted with more functions and is therefore more secure but is it overkill? which algorithm is better because they are both pretty similar.

anything on top of keccak is pretty much overkill already...