Some Real thought should be give to the Modes of Split-Screen and Co-Op available in Games.

There is a Distinction that must be made between "Real Friends" and "Online Friends"
Consider the Success of the Wii. Many have there Theories Why.
The Reason I believe is the Inclusion of the "Real Friend" Factor. Not the "Casual" Gamer is a New Audience.
Consider the Fact that the XBox360 is Now Cheaper than the Wii and STILL being outsold by the Wii.
Consider the Popularity of Halo3. This game allows 4 Players Split-Screen (Local and Online) (2 Players Co-Op in the Main Campaign)

Example 1
My Son has Friends over after School. Their Gaming Choices are Limited to what will support 2 to 4 Players.
Hence the Heavy amounts of Halo3 followed by Warhawk 2nd
Example 2
We go to a Friends or have them over. There are 4 adults and 4 children.
That Number 4 comes up a lot.
Hence the Heavy amounts of Wii Play, and Thankfully the Recent Addition of Little Big Planet.
Example 3
I am at Gamestop listening to a young teenage boy and his mother trying to find out what game he can buy that he can play with more than 1 friend.
No Games List this very well. I think the boxes should say ( Players 1-4 SplitScreen, 1-4 Online Co-Op, 32 MultiPlayer)

Another Point here is being able to Progress in a Game with Multiple Playstation or XBox Live IDs.
Little Big Planet is the 1st that Allows this. My Wife, Son, Daughter and I can all Progress our Sticker/Costume Collection Together.
Resistance 2 is the Example of the Wrong way.
Me and my Son wish to Split-Screen through the Co-Op, Only 1 Player gets to Progress his Character.
If it was implemented similar to Little Big Planet we could Progress our Character Classes from either Login ID.

I believe More consideration should be given to the "Real Friend" Crowd.
Also consider that Most people on these Forums Represent a "Skewed" Representation of 1 type of opinion, that is the Hardcore.
The little boy I spoke of at Gamestop is not going to Blog away on many forums.
I speak for the rest of us. The people hunting down Wii Consoles.
The People with more "Real Friends" than "Online Friends"

Since these Devs cannot seem to get it right in my opinion I thought I would spell it out for them.

#1 - Co-Op
Split Screen Not Just Online. Prefer 4 way Split. I don't care if the Story supports it or not. Does not matter. Why else do you think the Wii is so Popular, Yep I can play with more than one Friend or Family Member. Get this thru your head guys. It is the Inclusion of more than 1 or 2 Local Players that has the Wii kickin butt. Some of us have REAL Friends and not just Online Friends.

#2 - Vehicles In Multi-Player
I'm talkin to you Insomniac. I don't care if it can cause Unbalance. Just make it an option that I can choose. Perhaps only in Unranked Matches... Come on already. Halo pulls off the Vehicles without problems. Warhawk Balances it Quite Well. This makes for more "Fun" Online. Plus how many "Wars" go off with NO VEHICLES???

#3 - Customizable Controls with Presets.
Basically I like a cross between Call of Duty 4 and Halo3. Haze, which I thought was not too bad, had 1 HUGE Problem, No adjustable sensitivity for the X and Y axis. This is a MUST. Ideally you want lots of Customization and Presets similar to Halo, Resistance or Call of Duty.

#4 - 32+ in Multiplayer.
Do not listen to these "16 players is the Sweetspot" People. These are usually just the people trying to justify why Halo3 only supports 16. If you support More and Allow the Options either setting up the Match or Searching for a Match (Warhawk does this well). If you think 16 is the Sweet spot, then setup or search for a match that size. But don't limit it to 16, just scale the maps like Resistance or Warhawk and Now everybody's Opinion/Preference is fulfilled.

#5 - Guns, Tools, Gadgets.
Variety is Good here. The More the better in my Opinion. Laser Trip Mines, Flame Thrower, Chainsaw, BFG, Grenades, Sticky Grenades, Rocket Launcher, Turrets, Groovitrons, Freeze Ray, Something that turns People into Chickens. The More the Better.

#6 - Pick a side, Stick with it.
My biggest problem with the Halo series (which are some of my favorites) is the Changing of sides. If you haven't played any Halo Basically you are against the Covenant (aliens) until you are with them, but only half of them. Until you are against them again, until you ARE them... Ohhh Come on...

When I played Halo 2&3 it got to the point where I shot when my Reticule was Red... After a while I couldn't see the enemies any more because I was too busy focusing on the Reticule to make sure that that enemy was currently my enemy.

In a Similar Problem but for Online is Call of Duty 4. The Rank Badges have Various Colors in them. I had a Hard time distinguishing Friend from Foe. Nothing like Team killing a few people to make Friends. Especially when you switch sides from Match to Match it can become difficult to know your side.

Additionally in Regards to #1 Co-Op.
I have found it difficult to Figure out which games have what level of Co-Op/SplitScreen. So I am looking for Comments in regards to good Co-Op or SplitScreen Games and to what level that is supported.
For Instance;
Warhawk is Online Only but supports 4 Players on the Same System.

Resistance supports 2 Players in Split Screen Campaign Co-Op, 4 Players in Offline Splitscreen MultilPlayer but not Online.

Haze supports 2 Players in Split Screen Campaign Co-Op Offline, 2 Players in Offline Splitscreen MultiPlayer with Bots, 2 Players Online in a MultiPlayer match, and 2 Players in SplitScreen with 2 other players In SplitScreen for 4 Players total through the Campaign Co-Op. (I am bummed it does not do 4 Players SplitScreen)

I was trying to Find out what level of Co-Op/Split-Screen was supported in GRAW2, R6V1, R6V2 and it was difficult to find this information. Anyone who has played any of these games your input would be appreciated.

Does Anyone besides me really think it would be a good idea for Nintendo to Release a Course Pack for Wii Sports Golf.

Super Swing Golf just doesn't cut it for me.
Maybe someday the Third Party guys will figure out that if they make some courses with Wii Sports Golf Swing Mechanics and Allow us to play with our Mii's then they will sell Millions of that Game, Duh...