If you plan to get angel god konan and kisame samehada then ay 3rd is a very solid filler if you do not own hokage minato, if you plan to get kurama naruto then roshi is better. Those are long term goals, of course, in the immediate ay 3rd gives you a team to run with azure fang or crimson fist by himself, while roshi requires, to work, at least one 30 combo starter or an immortal team.

That team works if you run earth main and if you own a good global endurance, so an average of 13k+ def/res, 20%+ elemental resistances and high average spreaded injury.