One of them is support for jinchurikis. If you aren't using a jinchuriki there is no point in using him.

The other one fits better in your team, but then again there are better ninja than him. Remember that LM can only give immunity to 3 sword ninja, so using 4 sword ninja may not be a good idea.

Bee is immune, but you can't decide which three of your sword ninja will get row. If Bee gets row it would be wasted on him and one of your other three ninja will stay without immunity.