what kinda of plan do you want and what do you need the phone for? business, talking, media, what are you located?
Yes get an N series, the specs are top notch, 3rd party support is brilliant and symbian is a great OS. I'm posting on my N70 now using ICS from my pc over bluetooth. iPhones are junk, dont waste your money.
on market the most advance technologicaly is Nokia N95 with 5 megapixel camera and dvd quality video recording etc... If you want something unique go with it.
its my third year i work part time on cell phone store I have not personaly tested iphone. but what i read in media about it. its way behind N95 on most cases.technicaly its an mp3 player than a phone. Blackberry is a brand it has diffrent models... its too wide and not a good example for a mobile phone!! most of its models lack Camera, mp3 player etc..