^^^ yata isnt included.
On topic,
gaara's sand is auto,takes no chakra,has already blocked a complete susanoo attack,protected gaara from a meteor,it is very fast now and can block instant attacks,gaara can also add more chakra and sand to further increase it's defencive prowess,it also isnt attached to gaara,meaning he can block attacks midway and set up defences in front of him so as to increase his chances of surviving the attack,also sand is an opaque object,rendering light attacks ineffective. Sand armour is also very helpful as it renders taijutsu a very bad idea,but takes up a large amount of chakra to stay active and slows him down as it is quite heavy coupled with his gourd makes gaara seem quite slow.
Bijuu chakra shroud is next,it gives a high defence,but it is on the user,which means if an attack can break it,the user would suffer heavy damage,as seen when naruto stated that a raikage punch would kill him,however it is quite strong now,it takes some chakra as the jin is also giving the bijuu chakra while taking some of the bijuus chakra,so it dosent last for a very long time and overuse can harm the user. However,an allround very good defence as it can take powerful hits and attacks.
3) sasuke's enton susanoo,it is quite strong,however takes not only the chakra,but the life force of the user continuosly while being used,according to danzo,it's weakness is an area behind it in which a powerful wind releas move can break,also it dosent protect the user underneath,meaning a powerful earth release user can attack via the ground underneath,also if the user is attacked by light,the susanoo is helpless to protect the user,also if an opponent manages to ind a way to attack the user inside the susanoo,the user is somewhat trapped in his own susanoo for a few seconds before he can deactivate it.
However,the defensive abilities make up for the consequences to a large degree.