i used to think these were crap, but i have somewhat seen the light. I use the L1 stepover most often to take a guy 1 on 1. Sure - i could just go with a shimmy or the 45 degree R2 move, but sometimes they expect that and time it (when playing buddies).
so I'll throw them off my scent by mixing in some stepovers before I jam the toggle 90 or 45 degrees. Or sometimes, they will slow down when they see me do it, and then i'll hit R1 and push the ball past them like C. Ronaldo does.
It takes some practice and you will still lose balls, but when it works it is beatiful and it really pisses off your opponent!!
again - if you are a creature of habit and your mate knows your timing for juke moves, throw this wrench in his machine and he will be lost.