There can't be much doubt that the iPad 2 is currently the king of all tablets.
It has its flaws, its drawbacks and many a detractor, but it still offers the most slick tablet experience out there.
But that doesn't mean there aren't some viable alternatives out there, oh no.
The two champs right now are the Samsung Galaxy Tab 10.1 and the Asus Eee Pad Transformer TF101. Both are light, powerful, long-lasting tablets running Android 3.1.
The trick in comparing the Samsung and Asus is that they use remarkably similar internal components -- the same NVIDIA Tegra 2 dual-core 1GHz processor, 16GB of internal storage, 1GB of high-speed DDR2 RAM, 1280x800 10.1-inch touchscreen, Android 3.1 OS, front and rear cameras, Bluetooth 2.1, 802.11b/g/n for Wi-Fi (but no built-in 3G), and the typical gyro and accelerometer sensors.
To pick the winner, we've mostly evaluated the differences in physicality, performance and real-world functionality.
We should mention that there is one spec that is uncontested: the Asus Transformer beats the Samsung on price. The Transformer 16GB costs £379 or £429 with the keyboard; we don't know the exact price of the Samsung Tab 10.1 16GB in the UK yet, but the US price is $100 higher than the Asus at $499.
asus eee pad transformer vs samsung galaxy tab 10.1

Screen

Evaluating the differences between the two tablets starts with the 10.1-inch screen -- that's what you see when you first power-up the machine, you will use it for controlling apps and playing movies with finger swipes and presses, and the screen tends to cause the most battery drain.
There's no question the Tab 10.1 is brighter than the Asus Transformer, especially with the brightness setting cranked all the way up. Yet, the Tab 10.1 is also more colorful.
Viewing the exact same Harry Potter and the Deathly Hallows trailer side by side, Potter's mum - with her red hair and rosy cheeks - popped on the screen with a much richer colour treatment. On the Transformer, the same clip looked gray and dark (and the scene is not supposed to be ominous, unlike the remainder of the film).
In testing a handful of other videos and photos, the Samsung looked brighter, clearer, and more colorful in everything from a Bridesmaids trailer to our own video captures and photos with the device. Games tended to pop off the screen in a more colorful way on the Samsung.
Oddly, the Transformer, per the specs, should have the superior screen. The Samsung uses TFT technology, but the Transformer uses the IPS technology that is supposed to be better for side-viewing. In reality, both tablets looked about the same at an angle.
Winner: Samsung

asus eee pad transformer vs samsung galaxy tab 10.1