Retribution Paladin

Rotations:

Single Target (With Crusade):

1. Blade of justice
2. Judgment
3. Crusade
4. Templar's Verdict
5. Wake of Ashes
6. Templar's Verdict
7. Hammer of Wrath
8. Templar's Verdict

Single Target (With inquisition):

1. Blade of Justice
2. Judgment
3. Inquisition
4. Avenging Wrath (Wings)
5. Wake of Ashes
6. Execution Sentence
7. Hammer of Wrath (if blade is on cooldown)
8. Templar's Verdict

Or you could try this opener, both are very good:

1. Wake of Ashes
2. Inquisition
3. Avenging Wrath (Wings)
4. Hammer of Wrath
5. Blade of Justice
6. Execution Sentence
7. Judgment
8. Templar's Verdict

If you don't play with hammer, change out hammer with crusader strike or if blade became ready use that.

For AoE just change out Templars with divine storm.

Rotation Priority:

When it comes to Single target Rotation it's pretty straight forward for the most part, the most important thing is to keep Righteous Verdict up for as long as you can.

What I see most people do which is wrong is spend 3 holy power on Templar's Verdict as soon as they have it, and because of that i see they drop their Righteous Verdict buff a lot. When it comes to when to use templar's verdict you have to look at all your Spells, Holy power and Righteous time left. If you're at 3-4 holy power and Righteous is 3 sec left you can always fit in an extra spell before you press Templar's Verdict.

When it comes to what spell to use first, if they are all off CD I would recommend using Blade of Justice, Judg, Crusader, if you have hammer ready use that before crusader. But when it comes to what spell to use it's not as simple as "oh blade and judge is ready let me use it", you have to look at your holy power and righteous time left as I said before.