This of course depends on the game itself. Sometimes it's convenient to have a lot of time to build hype and sometimes the game just isn't even remotely completed yet to announce. (Such as The Division.) But speaking generally, what timespan between the announcement of a game and the release do you prefer?

3-6 months but my issue isn't when they announce it... Its when announce the release date/window

For example, Nintendo announces Smash Bros for 2014 in e3 2013 which I am fine with cause its gonna release in 2014 but when someone like Ubisoft announces Watch_Dogs for 2013 and keeps on delaying it till 2014 or Division for 2014 and now it might get delayed to 2016, thats when I have an issue with...

If you don't know when your game is gonna be ready in a particular time frame, then don't announce a release date/window. You can show the trailers and etc but just don't get people's hopes up for a blah release date... And specially don't mock another game like GTA V and then expect to get away with dissappointments such as a downgrade in graphics and delays

November to February after E3. So 5-8 months. Waiting too long is always detrimental unless you're Halo or something other overhyped.

A consumer should wait no less then a year. You want enough time to build up buzz but not enough time for the buzz to die down.

6 months after its announced. The maximum is 1 year. More than that, I forget about the game and lose interest.

6 months in advance is good but keep it to 12 months max before consumers start losing interest.

I don't think any kinda game should be announced more than 12 months before its release.

Its so bad now that they announce that they will announce a game months before its announced only for the announcement to not even have a release date but rather another announcement within that announcement that there will be another announcement "soon".

Thats "7" announcements just to get to the announcement that the release date will be announced at a certain time. If they can't see how wrong that is then they need to get their heads checked. By far the biggest culprits of this are Squarenix.

For it really depends on what type of game it is. If we're talking about a new IP, I think the game in question has to be at least partly playable, that way you can give people an idea of what it's all about. If it's a game in a popular existing franchise, it's ok tease just about whenever you want, as we all know it's coming and all the fans will eat up any little thing you give them anyway.

Very few games take a whole year to be released but when it does it is utter bullshit.

*cough* Yarn Yoshi *cough* Meagami X Fire Emblem *cough*.

6-12 months. Definitely no more than a year out. Look at watch dogs, that game had so much hype and excitement when it was announced just to see that hype slowly fade away.