First, as I read it, unless you pay extra, on most WW rifles you DO NOT get a hard chrome lined bore and chamber.
On Colt you do.
Many makers are using the "Chrome Moly" steel term to allow unwary buyers to think they're getting a chrome LINED bore and chamber.
Chrome Moly is nothing more than a barrel steel that's been used since the 1930's, it does not mean chrome lined.
There's a $300 difference between the WW and the Colt.
Contrary to popular belief, Colt does NOT charge $300 dollars more just because it has a Pony and the name Colt on it.
What you get for the extra money is a first line firearm made of US military specification parts, carefully inspected, and with top of the line workmanship, not just on the parts, but also on the assembly.
Colt makes most of their own parts, and since the commercial rifles are the same rifles Colt sells to the police, they're built with the same military specification parts.
According to Brent Turchi, Colt's Custom Shop manager, Colt Defense, makers of military and police AR and M16 firearms, simply "pass the rifles over the wall to Colt Firearms, sellers of commercial firearms.
In other words, the Colt M4 you buy at Wal-mart is exactly the same rifle Colt Defense sells to the police.
WW gets it's parts from who knows who, and made to whatever specification or lack of specification they want.
Here is a few facts about Colt.
Colt has gone through some hard times, close to bankruptcy. They had a huge labor dispute. They had and may still have a problem with quality control as well.
Colt uses a chrome moly barrel on a lot of its Ar's and they are not chrome lined either. They also use chrome lined barrels on some models.
Colt did not invent the AR 15 or M16, Armalite did. Your chances of getting a lemon is just as good with a Colt as well as any other brand.
Look both brands over in the store before you decide, see which one has the better fit and finish, which one feels better in your hands and most important chose the one you like. Everyone has an opinion and their opinion generally is the best one is the one they bought.
I don't understand why Colt owners or Colt admirers feel they have to jump to defend their Colt. Its like they feel a compulsion to talk you into a Colt and will bash any other brand that they do not even own or know much about. Do a search for reviews on WW and see what actual owners have to say.