Who is your favorite bleach character?

Ulquiorra Cifer (ウルキオラ・シファー, Urukiora Shifā^?) is the Cuarta Espada, signified by the "4" tattooed to his chest. His name stems from that of a furniture designer named Patricia Urquiola.^[10]
He has a largely stoic appearance, rarely even changing his facial
expression, and does not allow the actions of others to impede the
tasks set to him by Sōsuke Aizen.
He will attack his comrades to get them to pay attention to him, and
deems anyone he does not find of particular interest to be "trash" and
therefore expendable.^[23]
The remainder of Ulquiorra's hollow mask forms a broken helmet with a
curved horn and covers the left half of his head. His hollow hole has
moved since his first appearance; when first introduced it is at the
base of his neck,^[24] but in later appearances it has been moved onto his chest.^[25]
In battle, Grimmjow Jeagerjaques
notes that Ulquiorra tends to stab opponents in the chest, the same
location as his hollow hole, whenever he is particularly interested in
a battle, though it is unclear if Ulquiorra is conscious of this habit.^[26] He is very analytical; he almost accurately theorizes the means behind Orihime Inoue's abilities, and recognizes that Ichigo Kurosaki's power constantly fluctuates between very weak to comparable to his own strength.^[27]
He also seems to refrain from killing a person unless necessary, twice
sparing Ichigo and proclaiming he would not harm Orihime because he had
not been ordered to. When he is defeated by Ichigo's hollow form, he
goads his opponent into hitting him with a point-blank cero, saying
there is no more reason for him to live.^[28]
He can replay events he has seen to others by removing and crushing his
left eye, which then turns into dust and flows around those Ulquiorra
is relaying information to.^[29]
While most other arrancar traded defensive abilities for raw strength,
Ulquiorra chose not to, and boasts that he is the only one among the
Espada to possess high-speed regeneration abilities, shown multiple
times throughout his appearances.^[30] Ulquiorra is a firm believer in subjective idealism, stating that what his eye cannot see does not exist.
When released his zanpakutō, Murciélago (黒翼大魔 (ムルシエラゴ), Murushierago^?, Spanish for "bat," Japanese for "giant black-winged demon")
creates two large black wings on his back. His hollow helmet centers
atop his head, sporting two large horns, and his arrancar uniform
appears more form fitting at the top, becoming robe-like towards the
bottom.^[31] Additionally, Ulquiorra is apparently unique among the Espada in that he has a second release; Resurrección Segunda Etapa (Spanish for "resurrection second stage").^[32]
He becomes more muscular with clawed hands and feet, the whites of his
eyes turn green, and his helmet is replaced with elongated horns,
effectively removing his mask. Ulquiorra's arms and legs from the hip
down are covered in black fur, and he gains a long thin prehensile tail.^[33] In both forms he can create long "lances" of energy called Lanza del Relámpago (雷霆の 槍(ラソサ・デル・レランパーゴ) , ransa deru reranpāgo^?, Japanese and Spanish for ”lance of the lightning”), and when thrown can cause an explosion.^[34]
Ulquiorra seems unfamiliar with the technique when he uses it in his
second release state, unexpectedly missing Ichigo with his first one.
However, to compensate, he can produce more should his first miss the
target. ^[35]
After a long battle in which he is mortally wounded, Ulquiorra asks
Ichigo to finish him off. He refuses and Ulquiorra dies. In his last
moments he accepts the existence of others, as Orihime reaches out to
him even though they are enemies and she should be scared of him,
realizing the meaning of "heart",is mine.in other words Ulquiorra.