Got 99[,000] problems, and gladiator sandals are one. They are so dated. They should share the same fashion grave where skulls should be. Yet if you MUST have some gladiators, let me give you some opinions in Post #9,594 and #9,595.
First off, the L.A.M.B. gladiators are absolute Nay!s. That is, unless you want to wear shoes that look like dozens of snakes grasping onto what is otherwise a fairly decent shoe. While the Jessica Simpson sandals look a bit bland, I'm going to say Yay! since I think they don't look extremely poor.
But if I had to choose overall between the two, I'd either get the Jessica Simpson ones or find sandals that are 100,000 times lovelier than almost any gladiator sandals. You have MANY choices, so choose wisely!