This honestly depends on what you're going to use it for. It also has to do with opinion. If I had to choose between the two, I would choose the iPad.
If you're starting off, get a MacBook Air.
If you just want something for light tasks, get the iPad or iPhone.
If you are into heavy computing, go for the MacBook Pro.
Of course! Most Apple Products have the App Store, Here is a list of them iPhone 3G iPhone 3GS iPhone 4 iPhone 4S iPod Touch iPad iPad 2 iMac MacBook MacBook Air MacBook Pro
Macbook Air Laptop Macbook Pro Laptop Mac Mini Computer iMac Computer Mac Pro Computer iPad Air iPad Mini iPad 2 iPhone iPod Touch iPod Nano iPod Shuffle iPod Classic
If you only use your iPad for internet I wouldn't. But if you use it for apps yes, then you can sync your Apple ID.
The iPad is made by Apple. Also, the Mac, MacBook, MacBook pro, MacBook air,iPod shuffle, iPod nano, and the iPod touch is made by Apple.
An ipad Air2 would have more functional capability than an iPhone 6 and might be a better choice for Christmas.
I'm afraid no. Acre tablets do not have the App Store. The App Store is only available to users that have an Apple Product Here is a list of Apple Products that do have the App Store iPad iPad 2 iPhone 3GS iPhone 3G iPhone 4 iPhone 4S iPod Touch iMac MacBook MacBook Air MacBook Pro Apple only wants the App Store on their own products. I think the Acre Tablets have Android Market which is practically the same but doesn't have as many applications than the App Store.
You can't add additional RAM to a Macbook Air because the RAM module is soldered onto the motherboard. Apple has been migrating this way with a myriad of devices including the iPod, iPhone and iPad product lines.
Macbook air
I do not believe so, I have an 11" Macbook Air and tried to make Applications, iPhone Apps, and Games. None of them worked for me, probably cause I have 10.8.2 instead of 10.7.5
Apple makes mac computers, like the imac, mac mini, mac pro, mac laptops, like the macbook, macbook pro, macbook air, ipods, like the ipod shuffle, ipod nano, ipod classic, ipod touch. They also make "apple TV" and the iphone, ipad.
if you have the iPad 1, 2, iPhone (not sure bout the older versions but defiantly) 4, 4s, and 5, iPod Touch 1, 2,3. And all (depending on their age) recent apple Computers like MacBook Air, and MacBokm Air Pro
The Apple Products that are coming out in 2014 [a.k.a. this year] is a larger iPhone, Larger iPad, maybe an iWatch, iTV, a hybrid 2in1 macbook Air with a touchscreen, and on and on etc. including new software.