Well I think my favorite hit was actually not for pres, but a bloodless coup against a top 5 alliance.
The target: DESTINY...led by a fellow who had earned the disrespect of practically every general on the server. The alliance I led was #1 and I would receive at least 20 letters a day from people petitioning me to step in on their behalf and administer my brand of justice. Well, I was loathe to involve my alliance in a petty war that in reality was quite beneath them, so I used an alt to infiltrate DESTINY and slowly earned the trust of the leaders there.
Finally, the alt was made a vice in DESTINY, and so my plan was set into motion. I wrote a letter from my main acct (taem96) and used the alt vice to send it out to DESTINY via alliance letter. The letter read as follows:
It has come to my attention that this alliance needs to be dismantled.
Your current leader has been plaguing the server with lies, deceipt and treachery. This is against everyones best interests, including his own.
I encourage you to rally around one of your finer generals, like drinks, or reydaan.
I am sure you do not realize the scope of how your names are being tarnished by his actions, so to avoid unecessary bloodshed, I have opted for a peaceful approach to this problem.
Any attempt to rejoin forces with yash will result in swift punishment.
Thanks, and happy hunting,
Taem96
After mailing the alliance letter, all members of DESTINY were systematically deleted from the alliance, save the leadership team.
What ensued was mass confusion on wc between exDESTINY members trying to understand what had just happened.
In the end, no one remade the alliance, and in the span of only 5 minutes a top 5 alliance with over 50 million prestige was completely and utterly destroyed with absolutely no retaliation or bloodshed.
Additionally, I forbade the leader to create a new alliance, and took him hostage, forcing him to join my alliance for "reconditioning" in an effort to help him amend his ways and be a better leader in the future.
Much fanfare and letters of praise and thanks from the servers general populace followed, almost comically.
...And, just so you don't think I never give back to the community.....this is the ONLY time I have ever been hit for prestige, and boy did I ever!

Much props to dan, who caught me while I was tied up in pm between dispatches....the span of literally 3 or 4 minutes.