Since they don't have a definition for what MVP should be, anyone can be MVP. But if you asked who the best player in the NBA is, and you gave yourself an honest look, it is Shaq. I don't like him. I don't think he worked particularly hard for what he has because of his genetic advantage of size and bulk. But the fact is, no matter how boring it is, the reality is that he is one of the 3 players in history who they actually had to change the rules to make it harder on him. In fact, considering the times we live in of very healthy and well trained players, essentially BIGGER players, Shaq still managed to have 2, count 'em, 2 rule changes made for him, while Wilt and Kareem only had 1 a piece (both widening of the lanes). They added the "restricted area" under the basket, and the Partial Zone D.
Nash is the kind of player, like MJ, who they made the game easier for (new foul rules regarding hand checking for Nash's era, Palming and no-calls on double dribbling and O-fouls for the MJ era) However, while MJ got some MAJOR star treatment (read: unfair) Nash had to deal with the same new rules as everyone else, and is excelling at them.
If Nash can win MVP, so can, for example, Ben Wallace. Yet, I am told that Ben can't even get a whiff of the HOF because he can't score, why the bias towards offensive players? If MVP just means you need to score, call it the OPOY. Or, qualify MVP for O and D like they do in football (something they actually do right IMHO).
I have nothing against Nash. I like his play. I don't particularly like his hair, but if it makes him money and gets him recognized by the likes of Liz Hurley, who am I to judge? But to call him an objective MVP, hmm...
Perhaps, since this seems to be the trend, we should rename the award "Player of the Year" award. There is a subtle difference, but it makes my point, and I think would make for a lot less controversy. Player of the year is almost like comeback player of the year. That year, you did something spectacular. It doesn't imply you are the best player that year, but just that you did something special, and like every year, there is 1 player that does something spectacular that should be recognized. If both awards exist, you have the featured player of the year (i.e. KG last season, perhaps his 3rd worse season as a pro, yet he got MVP because of the seed he got in the playoffs.) and the de facto MVP, who you can only really debate between Timmay and Shaq that season.
Another example is when Jason Kidd was second in MVP voting a couple years ago. He was the featured player of the year, taking the NJ NETS (MY GOD THE NETS!!!!) To the Finals. He should have been recognized. However, Timmay was clearly the better MVP candidate. By having a Player of the Year category, both are recognized, but honesty is maintained.