Hi harvardgirl1,
Many Business School Programs expect applicants to score at least a 4.0 on the AWA - and the AWA is a relatively 'light' task on Test Day - so you shouldn't skip over it. The logic behind the prompts themselves is always really thin, so it's not difficult to find the flaws that you'll end up discussing in the essay. There are also several essay templates available (we teach one as part of our Course). Beyond all of those points, if Business Schools think that there's something 'off' about your personal statements/application essay(s) - meaning that they think you paid someone to write your essays for you - then those same Schools can request your AWA sample (as a basis for comparison). Imagine if you leave the essay blank on the Official GMAT? Business Schools receive so many applications that they often have to find reasons to reject applicants - and I wouldn't want to hand them an obvious one by leaving a standard part of the package blank.
1) Are you planning to take the GMAT soon?
GMAT assassins aren't born, they're made,
Rich