Grimmjow Jaegerjaquez(THE LAST SURVIVING ESPADA)

This is Grimmjow Jaegerjaquez(usually spelled as "Jaggerjack"), the 6th Espada. He began his life in Hueco Mundo as an Adjuchas in the form of a predatory feline. He made a living by feeding on other hollows. He'd constantly feed on higher-class hollows because like most Adjuchas, he was afraid of reverting back to his previous brainless Gillian-form. He was incredibly strong even for an Adjuchas. Aizen then saw his potential and knew that he'd make a good soldier, so Aizen took him under his wing and turned him into an Espada. He, along with his fellow Espada Nnoitra Jiruga, were the most foul-mouthed of the Arrancars - they wouldn't hesitate to spit out whatever they had in mind. Another thing that he and Nnoitra had in common was the love for fighting. They were both brutal and mean and they believed that they were undefeated. He hated Ulquiorra for always interrupting his battle with Ichigo. He also believed that Ulquiorra was afraid of him because he was stronger, not knowing that Ulquiorra's power was greater than any Arrancar's. 

As an Espada, he possesses an extra-ordinarily level of power that far surpasses an ordinary captain-level shinigami's. He's pretty strong for his rank. During his first meeting with Ichigo, he easily overwhelmed him even when Ichigo had activated his bankai. He was able to fight Ichigo without drawing his sword, using only his tough steel-like arm to defend himself and offend. However, when Ichigo learned how to use his new powers, he was overwhelmed by him even for just eleven seconds.

Grimmjow is officially one of the top 10 most popular characters in the series as he was voted the 4th most popular by the fans.

Will Grimmjow ever re-appear in the series?

The captains of the Gotei 13 have proven themselves to be formidable warriors as they've shown the ability to hold their own against the mighty Espadas. Most of the Espadas have already been defeated. One of them, although was never defeated by a captain, was killed by Aizen himself due to being insufficient in battle. Tia Harribel has already been declared deceased by the author of the series when she got hit by Aizen's Kyoka Suigetsu. Grimmjow, on the other hand, lives though his whereabouts are unknown. During his last battle in Hueco Mundo with Ichigo, Grimmjow was defeated, but would still come at Ichigo for fighting a little more. Ichigo then told him that it was useless for him to fight since he no longer had the strength to even swing his zanpakto, telling Grimmjow that that they should momentarily postpone their fight for there were more important matters for Ichigo to accomplish. Grimmjow still refused to give up because he couldn't believe that he'd lose to the likes of Ichigo. At the instant Grimmjow was about to attack Ichigo, he was instead hit from behind by Nnoitra, who was actually watching their fight right from the beginning. Grimmjow was knocked over by Nnoitra's gigantic zanpakto. By the time Nnoitra was about to finish him off, Ichigo saved him by blocking Nnoitra's weapon. This was the last time Grimmjow was seen.

Fans have no idea yet where Grimmjow has gone but most of them believe that he will appear later in the Fake Karakura town to assist Ichigo in his battle with Aizen, since he owes him for saving his life. Grimmjow is one of my favorite characters in the series, but I still like Ulquiorra better. I'm almost a hundred percent certain that most of my predictions about the series will occur. Grimmjow may seem like a heartless being, but he never forgets to pay back what he's owed. He'll most likely be there to help Ichigo.