I still play MW3. Hackers are there but I think the biggest problem I see and have is lag. It doesnt matter how good you are if lag is bad. If you`re not going to get the wii-u then you might as well play MW3 if you liked it before.

I am hopefully getting on for Christmas

I haven't seen a huge amount of hackers, although I do find a (obvious) hacker usually at least every 5 or so matches. If you think about it from the hackers' point of view:

1. None/Very little regulation of MW3 Wii.

2. Hey, I've bought SD card(s) for hacking my Wii, why not get Wii U and BO2 to play the coolest/ latest CoD games?

Overall, YES there are more hackers on MW3 Wii due to no/very little regulation. But at the same time NO, due to the release of Wii U and BO2. In other words, it's most likely about the same.

Some Advice: Buy a Wii U (probably has a LITTLE bit more "Anti-Hacker" technology installed into it (a.k.a. less hacker PROBABLY). Or you can buy an XBOX 360 which is pretty much as good as a Wii U.