Sure there is, if you hate line twist. If you enjoy it, then definitely don't run a swivel above your float and also run mono and make wicked long hero drifts
If there was any correlation between break offs and the amount of knots you've got in your rig, you might have a point but you don't. Tie your knots properly, check them often and it doesn't matter.
I think one of the best ways to combat line twist is to run slip floats. Like Mike mentioned above, the float does twist up the line a lot more then people realize.