IPAD3 or KINDLE FIRE HD for my personal pdf files and descent skipe.?

[Monica]

I would like to know which one is better for handling pdf files. I have many pdf from university that I want to transfer and read from my tablet. I also would like the tablet to chat using skype. I am unsure between ipad 3 and kindle fire HD. I want something easy to pass my pdf file without problems of compatibility etc. I have 200 plus files that need available to pass and be able to read from the bus. I dont want a e-reader because i also want the option to use the skipe or use some basic apps. Any recommendation is appreciated. I dont mind price i just need something that makes the job. Basicaly need something for easy reading, organising pdf files, skype use, linkedin, twitter, and facebook. I am not sure if Kindle HD will do the work for personal pdf and neither sure passing my pdfs to an Ipad will be that easy. Please advise what to buy