not precisely but recent gameplay from both (on the Jimmy Fallon show and such) seems to show the Wii U struggling a bit with frame rate while the Switch (in handheld mode) seems to handle the game much better. granted framerate issues will probably be improved by release 

Why not? Nintendo shit works out the gate, so no penalty for day 1 really. With consoles, I would say a pre-order is mandatory, unless you are definite about no day / week / month 1. I'm beginning to think NS will be similar-ish to Wii in popularity. But I won't make that prediction until I see the presentation and day 1 games.

are some of you in like Australia sure your preorder is official? not sure how a store could potentially accept mass preorders on a product that has not been ofificially unveiled in terms of price point and bundles (different SKUs?), they probably at this point wouldn't even know how many they're going to have on release day in terms of fulfilling preorders

I would imagine some of you have like a PRE pre-order in which you'll maybe have first dibs to officially preorder on the day that unlocks. Because at least in North America there is nowhere you can preorder the item yet (logical since nothing has really been announced).

Never heard of preordering a system without providing personal details either in terms of billing and things either

granted the likes of Gamestop has done official preorders to people before and then not had the systems available at launch for those who had already paid and things so maybe I shouldn't be surprised on these insanely early supposed 'pre orders'

as for the OP's question. 1 or 2, 1 definitely for me, maybe one for the sister assuming the price point is under 300$. However if Zelda ends up not being a launch title (I think it clearly will be but who knows) then I wouldn't preorder at all

I'm in Australia. EB Games here takes preorders that require a $50 deposit. The way it works is if 2000 people preordered but only 1500 units are shipped then the first 1500 people to preorder will get one. If there is a 2nd shipment of say 1000, then those other 500 preorders are fulfilled and 500 are put on shelves. 

If there isnt a 2nd shipment (say collectors editions) then they would just miss out and be refuned.

As for multiple SKUs, Im not 100% sure for consoles. I know for games with collectors editions its $50 deposit for best tier, $30 deposit for middle tier if there is one and $10 for standard.

Also the price listed right now is $999. Basically if its more expensive than $999 we still get it for $999, but it will likely be sub $400 so they really arent taking much of a risk there

No offense folks, but preordered multiple systems, ESPECIALLY if you're only doing so to resell them online, is total bullshit. Keeping consoles out of other fans' hands so you can make what should honestly be an illegal quick buck, is low as hell. Scalping of brand new products should seriously get some kind of regulation going. As in at the very least, companies like Amazon should NOT allow it.

I would only ever pre-order one, which I might do depending on the 12th as Nintendo is terrible when it comes to stock.

I'll preorder if it has Pokemon at launch!

I've never bought a system day one. The closest I bought a system at launch was the Wii, and even then I think I believe it 2 months later. It doesn't matter if the console gets popular in the public eye. It is a simple matter of becoming an impulse consumer. I know for a fact that I am going to buy the Switch, but if I go for it at launch it's like saying to myself, "I'm not being a responsible consumer". I want to wait and see Nintendo's policies and how they develop, and when they go a step in the right direction. whether with a new game, new modes, a partnership, an update, I want to be able to go and let Nintendo know, "Hey this  was a good choice to make, this is a reason to buy your product." That is just me on a personal level though.

On the pre-order the side of things, however, I think everyone should rethink buying into or convincing themselves to never buy a product they don't have in-depth information about. Its a lot easier to look at a system, accept its flaws and then consider buying it now or laterm then just ignoring all its flaws just to be suprised and upset that not everything meets your expectations.

None.

I never understood this logic. A fan is still getting one regardless if they bought it from the retailer or a reseller. If they feel the value is $500 vs the retail price of $250, then that is their perception of value. If they can't either A) pre-order to guarantee stock or B) be patient like I did for a Wii, then again its that fan's choice to spend their money as they wish. This is not a concert or limited edition item, this is a mass produced item that can be found at a retailer for retail price at some point in time. So the choice is always to plan ahead, be patient, or pay more.

Honestly, I say I'll buy one to resell each time and I never do partly because there is risk in that it bombs and resell prices are below retail very quickly.