For Pros- Have my new Kindle FireHD for a few days now, comparing it to an Asus Transformer T-201 Prime I own also. So far I noticed the the Kindle Fire is great for people that want an ease of use tablet that caters to the Amazon site for DLs and content, and that it integrates well with there prime membership for books & videos. For non computers users great for e-mail, viewing the web, YouTube video, Facebook, Skype, music, app library. Like the new setup to navigate between Store, Apps, Web,etc.
Cons- My Asus Android device seem to have more free apps available, along with a greater variety to choose from, more custom setup up to users way of using device, not locked into being directed by default to the Amazon Store. Faster and better processor in device. Android devices doesn't feel so restricted like the Kindle Fire HD or ipad mini. No free camera app included with the Kindle, No power recharger included.
Summary- I like both device OS and can see the need for each, for those who want to use an intuitive device go Kindle, for those who want a more custom setup device go Android or Windows 8.
I bought my son a Kindle Fire HD, and then returned it for a Nexus 7 (basically for the unrestricted Android marketplace). Hardware wise I can't tell much difference yet, but I am dissappointed to see that the Nexus does have "ads" in the apps window. I didn't realize the Nexus has an unavoidable ad space built in.
If there's an app you like on your Asus tablet that you'd like to have on your Kindle Fire you can use an app such as ASTRO File Manager to create a "backup" (copy) of whatever app you want, then upload it to a service such as Dropbox that you can later open on your Kindle through the browser to then download the app onto your Kindle Fire. To be able to do this you have to turn on the device setting that says "Allow Installation of Applications From unknown sources".
Another option is to root your Kindle Fire, that will give you full Android functionality like you have on your other tablet.
Oops, I ment iPad mini, with Apple releasing so many devices lately it easy to get confused, Have you got your new iPhone 6 yet? just released- just kidding, been over two weeks since Apple has announced the next great thing.
The Nexus 7 doesn't have ads, but a lot of the free apps out there will use the additional space to run an ad. If you don't want the ads many apps will provide another version that is "pro" and paid for normally for a nominal (e.g. 99c) fee