Doctor Who - Series 8

Whatchu talking about.

 Spoiler

That moment was a really tear jerking moment. You could hear in Ten's voice that he wasn't just speaking for the Doctor (who went through a whole lot and personally I felt gained loads of character development) since he's aware his current self will be forever gone, but I could also feel he was speaking for himself as well. Even now Ten's regeneration was a far better regeneration than Nine's due to Ten's regret and grief. Also from what we know, Ten also lived a very short regeneration. This regeneration only lasted 6 years was it? Here we have Eleven who has lived for about 300 years or so and carried with him great guilt for Amy and Rory's deaths, and he's just now realized how important Clara is to him. I wouldn't be surprised if he even begins crying tears as he finally regenerates instead of just being upset.

And let's not forget why Ten was so sad about regenerating:
"Even then, even if I change, it feels like dying. Everything I am dies. Some new man goes sauntering away. And I'm dead."

 Spoiler

Bullpomegranate. Regeneration is not death. Death is final, it's messy, and it's sad. Regeneration is bittersweet in a way, but it is not the end. He may act slightly different but he is still the same man. The Tenth Doctor can claim that a "new man goes sauntering away," but then he needs to explain why he told Wilf he thinks he's lived too long. If he truly thinks of himself as a completely new man, he would have never considered six years to be too long.

The First Doctor told his companions that it wasn't over, and he had never experienced regeneration before. The Second Doctor was forced to regenerate by the Time Lords and, while he fought to stop them, he never cried like a child over it. The Third Doctor faced his fears and regenerated with class and dignity, making sure Sarah Jane knew everything would be okay. The Fourth Doctor actually witnessed the representation of his next incarnation and didn't whine or complain that he was going to regenerate soon. No, he saved the day, fell to his death, and then smiled at his companions and told them that everything would be okay. The Fifth Doctor sacrificed himself to save Peri knowing that he might not regenerate. Like the Doctors before him, he did not whine or cry, despite being in intense pain and not knowing what might happen to him. Like the Third and Fourth Doctors, Nine made sure to reassure his companion and make sure she knew it was not the end. Meanwhile, Ten makes this big deal about regeneration, treating it like death when it is clearly not. He wants you to feel sorry for him and, after somehow halting his regeneration to go look at his companions one last time, lets out the pathetic whimper "I don't want to go" to Murray Gold's over-the-top orchestral soundtrack.