Both have the same 1Ghz dual-core Cortex-A9 processor; although Apple calls it A5, which promises high performance and low power consumption. Apple has iOS, currently at 4.3, and Samsung uses Android 3.0 Honeycomb.
It used to be the smaller form factor the better, now the thinner and the bigger screen the better. After iPad 2 was announced with 8.8mm thickness, Samsung immediately announced a thinner Galaxy Tab 10 at 8.6mm thickness.
Being an iPhone user, I do love the simplicity of the iOS operation. One home button and everything is on the screen. Although I do love Android's UI, the widgets and all that. Both with promising apps that will basically get you going on whatever you have going on your daily life. You know? Games, utilities and Multimedia.
For blogging, camera on a tablet is now a must because you chronicle your every day experience and you may never when a UFO would fly by to take a picture of. ;)
Choices.. choices.. choices...
Comaprison Table c/o GSMArena