iPad or Surface?

Ever since Apple's iPad was invented and came to the marketplace, the iPad series almost dominated the tablet market despite the updating new products from its competitors. Recently, the biggest threaten to iPad 4's market share is Microsoft's Surface.
I bought the new Pad in January and visited Staples for the Surface a couple days ago. I also did a bit research online to compare the two tablet and listed the following features that the two competing products have.


For iPad 4, due to the new ios 6.0 system, it operates faster and has a faster speed to connect to wifi. The reason iPad 4 is called the New Pad is because it has retina display. The retina screen provides a 4 times high resolution and doubles the resistance of scratches than iPad 3. I have to say, the iPad 4 has a much higher improvement from iPad 3 than iPad 3 to iPad 2.

In my opinion, an important reason that Surface might be a great threat to iPad 4's(or even later versions') market share is because the Surface series may suck the business users back to a Windows based operating system. However, I think the current version Surface RT is still not competitive with iPad 4

The Surface that exists on the current market are mainly Surface RT, the size is almost the same as iPad 4. Generally, Surface RT has a better processor than iPad 4.It also has a keyboard attached with it for business users.
However, even though the keyboard is designed for business users to type easily, it does not necessarily feel the same way as typing on a laptop keyboard (from a personal perspective). Therefore, the keyboard really cannot be characterized as an advantage over iPad 4, not to mention that you can actually spend about $100 to buy a blue tooth keyboard for iPads.
Another reason that I think Surface RT might not be competitive is because there is a lot compatibility issue going on. The main motivation for business people to choose Surface is because there are certain software can be accessed easily on Windows system than Apple's ios system. However, for Windows 8 and Surface RT, many of these software are not compatible. This can be a big big discouragement for potential Surface buyers.For example, I am a big PC fan, nevertheless I picked iPad 4 instead of Surface RT.

All of the above is the current picture I drew for people who plans to buy a tablet recently. However, the situation might change significantly when the new Surface Pro came out in 2014.