wow... I love Mogo more than a lot of characters, but that is maybe the biggest scroll break i've ever seen for no image to be in, advantage: Cosplay f**
but seriously folks, i'm going to go with Mogo, it's a planet which can unleash anything it's planet sized will power can conjur up at the speed of thought, as opposed to say, the Deathstar which requires an excessively old guy with huge cheekbones giving an order to "fire when ready" and then a 45 second weapon prep-sequence, THEN a rather noisy powering up sound and a weapon's release, which mogo would more than likely be able to put up a shield and deflect, advantage Mogo.
he's a fuggin' Planet-man Green Lantern!
edit:: almost forgot my entry....

this motha fugga Rob "Ripped off two comic companies at the same time" Liefeld
AND...
Mortimer "The Green Arrow is in no way based upon the Batman" Weisinger and George "What Morty said" Papp(picture not available)
for sheer ball-sackiness.
(backstory) Liefeld USED to work on Captain America, specifically during the poorly concieved "Heros Reborn" event, where-in Cap, among many other heroes, were "reborn" or relaunched in their continuity starting in the modern era. This was extremely poorly exicuted on all fronts, so I won't blame him here. Anyway, when that went away, so did Rob, and he proceeded to go to a different company and worked on a book called "The Fighing American" which was created by the same blokes who created Cap way back in the day, except that then, this character was dropped shortly after it's inception. SO Rob was charged with reviving this character, which he did for about 8 issues in which he gave TFA a side-kick named "SPICE" which was a 16year old girl android thingy, with a strong resemblence to the Reborn event's Cap sidekick Bucky, a 16year old regular girl thing. Y-anyway, after TFA's 6 or 8 (i forget which) ish run, it was shut down, and Rob when on to create a new character "Agent America" here's a lovely comparison page which I also posted in the Comic thread...
'ere ya goNeedless to say he was sued... BUT still, lot o' sack to stand there and deny that each successive effort wasn't a forgery of the previous.
Meanwhile, Mortimer and Papp co-create the now legendary Green Arrow, who originally had a youthful-ward sidekick, a series of elaborate gadgets which went along with his theme, and an Arrowmobile, an Arrowcave, an arrowboat, and my favorite, an Arrowplane, was incredibly wealthy, and was summoned by the police with the Arrow-signal, This sort-of pointed out a pretty large simularity between the Emerald archer and a certain cape-and-cowel wearing dark knight detective.
When questioned by this, his creators flatly deniged any and all connection between the two characters. On the upside for these guys, both books were put out by DC, so no legal action was ever taken. Still, lot o' sack.