erm... a little bit of advice to add onto this already top notch guide.
Don't prenoble your village so that it only requires 1 noble to take it UNLESS you have seen that the player in question splits his nuke.
Your average player will send 97% of his nuke escorting the first noble (just a random high %), then just 1% of the nuke with a noble for the second, third and also fourth waves. This means that the first wave can kill off the others in offence.
So when I prenoble-renoble, I hit it so that the loyalty is between 30 - 40, so the chances of him taking it with his first noble are slim. But (another UNLESS) if he/she is hitting you close range with trains from an offence village and you want an easy way to wipe out a good player's offence nearby to you, specifically I will ensure they take it with their first noble and hit it with a nuke + noble right after.