I recently re-watched TNG. I've been making a list of the best TNG episodes. I have a draft version of it that's nearly done. Maybe I'll post it later, but I'll say that AGT was the best episode.
Reasons:
* Three different time settings, with three different dynamics
* Q is awesome
* It's all about Picard and is skillfully done
* The plot is solid
* It's got 2 epic moments (Picard's speech on the old enterprise and the 3 enterprises inside the anti-time anomaly
* It was all about bringing the whole series full circle, you really can't ask for more than that
* Good cinematography (i.e. when all the Enterprises go and the camera comes down on Picard in an all white surrounding
Reasons:
* Three different time settings, with three different dynamics
* Q is awesome
* It's all about Picard and is skillfully done
* The plot is solid
* It's got 2 epic moments (Picard's speech on the old enterprise and the 3 enterprises inside the anti-time anomaly
* It was all about bringing the whole series full circle, you really can't ask for more than that
* Good cinematography (i.e. when all the Enterprises go and the camera comes down on Picard in an all white surrounding