knowing the best of microcontrollers

I am new to microcontrollers, so I need to know what is the most powerful microcontroller that exist now and how can I get it datasheets , books and applications & interfacing of this microcontroller to external devices

My friend, you ain't goin' anywhere until you actually learn a language to program a microcontroller in. Head over to www.winpicprog.co.uk for tutorials on assembly (the most common PIC programming language)

As for wanting the biggest and best chip, well all i'm going to say is start small (seriously, don't go and blow the big chips until you have some experience. I learnt this the hard way.)

good luck