As with every hardware launch it all comes down to how good the software is. Arguably the 3DS software line up has been pretty weak, giving PSVita a really good chance of doing well (if Sony don't stuff up their launch line-up). But with there being only two dedicated portable gaming devices on the market, there is enough room for both to do well!

There are no announced games on the Vita that i need to play right now, and i am not sure it will ever have. I know there will be games i need to play on the 3DS and that is why 3DS win.

^^^3DS had a week launch (I agree). But compare that to the launch of the DS!! The 3DS launch games are masterpieces by comparison!

And thanks to Buzzi for his statement about the 3DS's battery life. I have a smart phone. I can kill the battery in about two hours if I use the Wi-Fi, turn the brightness all the way up, play Angry Birds, and leave a bunch of apps running. Same goes for the 3DS and no doubt, the Vita. I've logged in over 20 hours of Legend of Zelda, 16 hours of Super Street Fighter, 5 hours of Resident Evil Mercenaries (turns out, I really like this game), 6 hours of Chrono Trigger, and a few other DS games since June 25 and I have NEVER had the battery die. The 3DS has a power save mode, brightness controls, 3D depth slider, and a switch to turn the wireless on and off. You can turn everything on for an optimum experience or cater the experience to your needs and get a ton more battery life.

I plan to get both, like I said, and I'm refraining from speaking badly about the PSV because it's just too early. I will say there are a lot of misconceptions about the 3DS. I expect the 3DS to do very well. It's an awesome system. It would be a damn shame if people don't gravitate to the system.

Hmm i dont see vita beating the 3ds because of nintendos first party games. they just sell to much, though i still see the vita doing great. Also specs dont mean much like people have said ds beat psp and wii beat 360 and ps3..

I don't think Sony would mind the 3DS doing well considering how invested they are with 3D technology!

I used to have a PSP and a DS. Eventually I sticked with the DS because it would fit in my pocket. Currently, I carry a 3DS in the same pocket as my wallet. It is a very portable machine, in a way the PSVita will never be.

Obviously, the Vita is a much more powerful machine but I don't think it will make much of a difference. By watching the videos of Resident Evil Revelations, I doubt the 3DS will appear to be much behind in the graphic department in the view of the customers.

Regarding the launch line up, I would say Vita is currently unannounced. Nintendo also promised a bunch of great games that they are releasing now, almost six months after the hardware launch. I wouldn't be surprised if Sony do the same.

Also, in relation to price, Nintendo is making a buck whereas Sony will lose some money at each sale. That means Nintendo have some fat to cut and keep the pressure on Sony in regard to price, which is good news to gamers like us.

I couldn't care less about browsers and other secondary functions. Most people carry a smartphone that can do all this stuff much better.

In the end, it will be up to price (Nintendo potential advantage) and games (yet to be determined). If the past can be used to predict the future, it is a fact Nintendo usually nails the software on their portable machines, whereas Sony struggled with the PSP. So far, I am not sure Sony got it, but I hope so.

Being British, these comparisons where I see 'price = tie' is like a dagger to my heart. There's already a £50 advantage for the 3DS here, although that keeps fluctuating with various special offers, and has been as high as £80...

The fact that you still haven't edited the OP to correct the camera situation or the portability situation proves you were never looking to make this an objective, actually-looking-at-the-facts thread and you only wanted to convince people to go with a Vita/decide the Vita will win this time.

And to list graphics separately from power? Really? Those are the same thing and you know it.

As many people have stated it all comes down to games in in the end, but i hope those games come to the vita for a number of reasons:
-superior graphics, AI, physics etc
-Better control option IMO: dual anologe sticks, touch screen on main display and touch panels... the extra DS screen is good as a map/menu viewer but im willing to sacrifice it for the above
-Better portable functionality IMO: the vita is bigger which is a con but all of the games on it will be available via download which is necessary for a handheld device in 2011. I'm not carying 3 catridges around with me for all the games , i may potentially play. ( however i dont really play games on the go)
-browser and other network support: Again, the ps vita isn't out yet so theres no direct comparison but having 5" multitouch screen is superior to what the 3ds is offering in terms of navigation. Sony also seems to be putting on emphasis on a online network than nintendo whos console launched without a eshop. Also looking at their other products ps3/psp, its likely the vita will have more online content.

Unfortunately nintys 1st titles exite me far more than sonys, so 3rd party titles may be the deciding factor. But again i feel like most experience could be had on the 3DS, would probably be improved by vitas hardware.

3DS will win similarly to how DS won against the PSP. The Vita (Sounds like Pita) is a very big portable device, and is not going to fit in peoples pockets like the 3DS can. I think this is a very major reason why the PSP might have sold decently hardwarewise, but failed miserably on the software front - the thing is, Vita is even bigger than PSP. It is easy to carry both a 3DS and an iPhone, but there is no place for a Vita.

I think the Wii U is going to be the big competitor against Vita, and that 3DS will be in a category of its own. The Wii U controller and Vita will both be systems that will be portable and stay at home. The difference is that the Wii U controller is larger, lighter, streams from a far more powerful device; it essentially destroys the Vita in all the categories you are comparing the 3DS and Vita in.

Another factor that people may have forgot is that Nintendo has the option to drop the 3DS price down when they want to, that option is not available to Sony, as that large machine has a expensive manufacturing cost.

The Vita also does not have the games that Nintendo has - it has games that are essentially updates of PSP titles and down-ports of PS3 titles; Nintendo has games like Mario Kart, Animal Crossing, Mario, Pokemon, and many more; all of which are proven to be able to sell 10 million+ on handheld systems. The best title Vita has is Monster Hunter, and that probably has potential for up to 5 million.

I can see Vita doing well for 1.5 to 2 years, and then it will begin to fall further and further behind the 3DS. I do not think it will do as well as the PSP simply because Sony Playstation is not nearly as big of a brand as it was when the PSP came out. The technical advantages of the Vita are not as great as PSP had in comparison to the DS. I will guess 3DS does 130 million sales, and Vita does 45 million by the end of 2016.