It seems that trying do defend Morrison in my first post will not be the most popular decision of my life, but i'm not ashamed on supporting one of my favorites contemporary wrestlers. I'll make some objectives statements, it's probably too late, but hopefully anothers mofo's lost around here make their opinions know too.
First, John Morrison is more agile than Bam Bam. No, they aren't equivalents in this aspect. Bigelow sure is fast for someone of his sizes, not trying to discredit him, but to say that he is as agile as Morrison is going too far. The shaman has more speed, can dodge and counter more easily and the most important, use the ring ropes and turnbuclkes with a lot more spontanity, being able to reach the top rope with a single jump for example. It's understood that in a fight, being quick is more useful than being strong, and with a height of 6 ft 1 and weighting 219lb, Morrison is not weak himself; his strikes will surely damage the beast.
Bringing in Bam Bam agility isn't a strong argument at all, specialy after you consider that Morrison already defeated Evan Bourne, the undisputed master of the flips.
Secondly, Jonh Morrison is a very fit guy, while Bam Bam, well, isn't. It's hard to argue against Morrison good shape, one of the bests in all sports entertainment. Endurance is an important factor in a bout between two skilled wrestlers and the shaman has the clear advantage here. He is also smart (his gimmick is kind of a bizarre guru if you think about it) and will know how to use it in his favor. As soon as Bam Bam gets tired he will become a lot more vulnerable, and Morrison will still have full force to capitalize.
In third place, you have to consider the TNA ring, wich strongly favors Morrison. He's not the usual high flyer who has just one or two maneuvers that require him to climb the turnbuckle; actualy, the major part of his ofense consists in the use of the ropes and the corners and, well, he will find a lot of these in TNA. He always uses the ropes to get momentum for kicks and punches, being his oponent stand up or on the ground. When his oponent is on the corner, one easy situation here, he quickly counter any atempted move with his "pelé kick", even when the rival is on the top rope (a very likely scenario in this match). His springboard kick, wich despite not being his finishing move was enough to finish wrestlers that are considered very tough, like Finlay, can be done from six diferent sides and come out of nowhere. His split-legged corkscrew moonsault ("starship pain") is also almost instantaneous and can come from six diferent turnbuckles here, reaching anywhere in the ring due to it's dimensions. Bam Bam would be attacked by virtually every angle. Even the moonlight drive can be executed with the help of the ropes. Speaking of his finising move, it doesn't require any kind of lifting, being equally efective on big or small guys. If he wanted to be stylish, Morrison could just use a sweet chin music like the one that knocked out HBK himself.
Another important factor is that Morrison is going to this match with a very respectable win-loss ratio. Despite totally dominating the tag team division with one hand tied to his back, he was also a very sucessful intercontinental champion, in times of decadent title reigns. Was also an ECW champion when the title meant more. He never was squashed and there's absolutely no motive to think that it would happen now. He wins the vast majority of his matches (the last two in the same week, the day after the break up with the Miz, against two ubber over faces). Even in his tag team days, Morrison rarely was the one pinned in the rare defeats, and was always the one who capitalized on the numerous victories. It's safe to say that people are used to win a lot at the Palace of Wisdom. Bam Bam was far from unbeatble or unstoppable. I have to bring the fact that he was defeated in a wrestling match even by a football player with no experience.
Finally, Morrison knows how to cheat. And cheats a lot when needed. If the tide turned against him, he would do things that would made Beer Money proud, since the referees in TNA doesn't like to disqualify people, for whatever reason. He's sneaky enough to pull a lot of dirty tricks that would give him the upper hand.That being said, it's not like it's a necessity, the shaman last victorys was totally clean, witn no cheat whatsoever.
So don't be afraid. Vote for Morrison with clean conscience.