I won't. I think that the Asus Transformer is the more attractive and more versatile device. The fact that I can turn this machine into an Android notebook with 16 hours of battery life by simply plugging it into its mobile keyboard dock is killer argument enough for me. Why? Because somebody obviously thought that people actually might want to use their mobile gadget for WRITING and REAL work and not just for toying around with it.
Sure, the iPad still has more native software available for it. But since Android already has a 48% and growing market share, this is only a temporary advantage. And Android already has the few apps that I need on a mobile gadget like that, so for me it's not even an argument. Your personal mileage will vary, of course.
But even though iOS currently might have more software running on it, it's also a CLOSED and RESTRICTED platform. For me, this is the ultimate killer argument AGAINST iOS and FOR Android. I don't want a nanny software platform that limits my possibilities, I want an OS that does NOT get in my way and Android gives me all the options that I want.
All those arguments are probably null and void for you, so go ahead and buy the iPad instead while I wait a bit longer for the rumored Amazon tablet to arrive. Maybe they're all just iPad rip-offs, but who cares? They are already cheaper than the iPad, have more powerful hardware, an operating system that is indefinitely more open than iOS and there is strong competition between the vendors that ensures the long term evolution of the platform.
You know, for example, I can plug-in ANY keyboard to the USB-port of an Acer Iconia and type away. I can plug-in a USB stick or SD card and copy ANY file OFF the tablet to the inserted memory card/stick. Try these simple things with an iPad. I rest my case.