Got a HTC wildfire, don’t know weather to get a blackberry 9900 or iphone 4?

Im upgrading soon and I’ve currently got a HTC which i hate!!! And please don’t suggest another one as I Don’t want one!

Anyway, I text, internet-Google and Facebook etc. Calling, some apps but not app mad lol I have more mates on bb and some friends on iPhone. Now I like the features of the iphone as I had an ipod touch two years ago but broke . And most of my mates are onn bb but ppl are sayin don’t go for this phone but go for this one and vice versa.
by the way im am 19 and in my last year of college! so i dont have that much money atm but might do when i upgrade by cant be sure.