Well for me this game is pretty much the big deal! i can give ten reasons why!?!

1.) Such a big freaking map to play on!it takes forever to memorize the location its that big!
2.) Great selection of weapons! if your feeling really down take a bazooka and shoot the crap out the city!
3.) Tons of vehicles to choose from! from sports car to normal SUV you got motorbike all that crap! : )
4.) Amazing Graphics! Simply Simply Amazing!
5.) The Story don't even let me go there! well great story lots of twist and never keeps you bored lots of characters in the game that makes you feel your with somebody!
6.) Multilayer is okay lots of selection to choose from! if you wanna go solo or join with a group it has pretty much you need to make liberty city your playground!
7.) Its a pretty hard game and very challenging game in terms of no cheat! makes you wanna throw that controller of yours!
8.) People react to you like normal people Slightly an okay A.I for me!
9.) Simply the best from all the series and tops it all in terms of gameplay,story and etc...   ; )
10.) Common! its freaking GTA for pete sake! rember the good all days its happen all over again!