Bolongo
Herr Doktor
Sure, that works. Encounter powers, every last one of them.I play a Dragonborn Fighter, and one of the reasons why is for Dragonbreath. As a Fighter, I can use Dragonbreath to mark anyone in a Close Blast 5 at the beginning of a fight. I will also be taking Sweeping Blow and later Come and Get It. Why? Because they're muti-target powers that allow me to mark anyone I attack.
I'm still not sure you've understood that CC only lasts until the end of the fighter's next turn, meaning that in a long fight the multimarking will only be active for as many rounds as you have powers to activate it. Or in your own words only "when powers allow him to do so".

Overall, I'm not denying that fighters are the stickiest of the defenders, it's just that a few of your arguments are faulty or phrased in a nonsensical way, and other defenders are not as sucky as you make them out to be.
![Devious :] :]](http://www.enworld.org/forum/images/smilies/devious.png)