I'm kinda surprised really that this hasn't already been done, but since it hasn't, I'll take a humble swing at it.

With A vs X (Avenger vs. X-Men for those unfamiliar) now kicking off in full swing, I thought thread on the subject would a cool idea.
After all, it has all the things ATS is infamous for. There are moral ramifications of government rights and authority (Is it cool for Cap. to seize Hope as a potential threat to the planet?).
There's the question of national sovereignty (Like when the Avengers invaded Utopia with SHIELD back up.).
And how about Scott (Cyclops)?, is he totally off his rocker, or with his experience with the phoenix (arguably the most any mortal has, save maybe Rachael, but since she was a host, I don't know how "mortal" you'd define her as. After all, she lives all the way to the years Cable was a baby in the mini Cyclops and Phoenix, where Scott and Jean take a honeymoon in the future to raise the future b.a. Cable.), is he justified in saying "Let us handle this, we're the X-Men, this is what we do."
Also, what about Wolverine? Is it right to kill Hope to stop the Phoenix before she can become it's host?
See, there's a ton of controversial points in the series, and as the event proceeds, we'll only get more divisive issues along the line.
When it first started off, I wasn't too sure about this super-hyped event. It came off kinda forced, and it seemed to me both team leaders are acting a bit out of character to justify selling a comic. But after reading A vs. X #3, I've been drawn in.
At full discretion, I'm totally X. Scott's made the hard calls for some time since M-Day, and united mutants in a way neither Magneto, Xavier or any other come along lately ever has.
But I will admit, Cap. earned alot of my respect when he kicked Wolvie off the transport (well, actually Pym did the kicking, but anyways...) after he let Wolverine know he won't be supporting the murder of a teenage girl.
It looks to be an exciting series, and I'd love to hear ya'lls thoughts and opinions of Marvel/Disney's first big cross over.

Under no circumstances should Luke Cage be considered a formidable threat for Namor, a being that's adeptly squared off against Hulk and Sentry. Furthermore, if Stark can defeat Magnus, he needs to change is his alias from "Iron Man" to "Non-magnetisable Metal Man". I favor the X-men over the Avengers and long for a film adaptation of Xavier's students that's on par with the sheer excellence Joss Whedon has recently bestowed upon us. Fox needs to relinquish the rights back to Marvel/Disney and reboot the series by sticking to the source material, gaudy costumes and all.

Though I haven't opted to collect AVX, I eagerly followed the Civil War series in full. I'm not a fan of the manner in which Stark defeated Rogers in an ideological sense when Rogers clearly represented the fight against government invasiveness, tyranny and the NWO.

Originally posted by rexusdiablos
Under no circumstances should Luke Cage be considered a formidable threat for Namor, a being that's adeptly squared off against Hulk and Sentry.

Then I'm sure you'll love to hear this. They had Thing beat Namor, in the water, under Utopia (where Atlantis is located. So literally in Namor's backyard, so to speak.) in the "verses" mini that co-incides with the main series. This is the same Thing that couldn't even take Namor with the whole FF at his back on multiple occations.

So, yeah, it's had it's rough moments already. But there also have been some really good and nerd-cool moments, like Colossus (Juggernaut infused) fighting Red Hulk. Red Hulk wins, but under Gillen's pen (current writer of Uncanny X-Men, and I personally hope he never leaves.) it is an excellent story for what was suppose to amount to a slugfest.

the AvX versus series has a highlight of captain america fighting gambit ( which is awesome ) and spider man taking on Juggernaut, all in all the series has a few battle that are pretty out there. But for the earlier poster Iron man Vs magneto is something you have to read into, engineering genius tony stark has planned for magneto's presence beforehand teehehehehe, otherwise magneto would have wiped the floor with him.