I have both the Wii and the XBox 360... Both are fun but they are not really competing for the same market.The Wii is a great toy for everyone
There are more casual, fun for all games available for it and good for parties. Nintendo has much better for Wii only (exclusive) titles (they have the Mario franchise) and really cater to the pre-teen gamer. One would buy a Wii to play Mariokart and Zelda.The XBox is a great toy for the more serious gamer + entertainment hub for everyone
I have XBox Live Gold (~$3/month) + Netflix ($10/Month). For less than the cost of a DVD/month, I can stream tens of thousands of Movies + TV shows in HD right to my TV through my XBox. The same can be done through on a PS3 through the PSN (Playstation Network). PSN is free so all you need is a Netflix membership.
The XBox networks to my PCs and Servers and I can stream music stored in these devices to the XBox and play them through a stereo (or just the TV).
XBox 360 exclusives (Halo franchise, Forza motorsport...) are great but not enough so that one would buy the XBox over the PS3/Wii to play them.
Used games and accessories are generally more readily available and less expensive for the XBox. I buy most of my games used on eBay or half.com.
Accessories (extra controllers, rock band guitars...) are MUCH less expensive for the XBox.
You can play original XBox games on the XBox 360 (not all though) with a free download... hare's a list: http://www.xbox.com/en-US/games/backwar ... eslist.htm
The games released across all 3 consoles (sports games, racing games, first person shooters..) look much better on the XBox and PS3 (of course... it's in 1080p HD). Practically none of these games make good use of Nintendo motion sensing technology and the controls are much better/responsive on the XBox. Some of these games look like an afterthought of a port on the Wii.
My kids are 6 and 8 and if I had to keep only 1 console it would be the XBox 360.
One word of caution... Do not buy a used XBox as they had some hardware problems early on (early PS3s had some prices as well). These are pretty much fixed now so new store bought units are rock solid. Buy at least the 60GB XBox.
I'm no fan of Bill Gates and Microsoft but all things being equal... I'd rather buy a console from an American company than a Japanese one. Nothing against the Japanese and practically all of the consoles are made in China anyway but at least the profits stay in the US.
The prices vary on the XBox 360 consoles vary because they have bundles and limited edition consoles. Here's the one I would buy ($299... elite console with 2 games).http://www.newegg.com/Product/Product.a ... -_-Product
I suspect prices will drop as one approaches the holidays and the retailers put deals together.