As you will see from my signature I have a lot of experience of Android devices, running many different versions of the OS. The main "problem" with Android, if you can call it that, is also it's strength. It is actually the reverse of the Apple strength/weakness mix.
Being open source allows many manufacturers to provide their own implementations of the OS. This is a good thing. It brings competition and inventiveness. however, it also means that the user experience varies across manufacturers. Some provide software updates with more speed than others, some implement the OS with more stability, some with more polish. This means that while an iPad is an iPad is an iPad. The same cannot be said about an android tablet. The Asus tf101 is very different in feel to the Samsung Tab 2.0 for example.
As an owner and user of both devices I can already say that the iPad 3 is the nicest, most polished and enjoyable tablet I have ever used. It is not without its weaknesses, however. One example is the inability to select a soft keyboard with a number row as a fifth row. I have seen requests for this dating back 2 years, but still we are not "allowed" to have it.
Nothing is perfect. Nothing will suite everyone. At the end of the day all devices have their limitations - part of the fun is working around them & making your device "yours".