Things I dislike.
Graphics - I like the graphics in LCS, they were nice and bright, but in GTA 3, the graphics are dull and make the city look dark, grey, and too depressing.
Physics - you can't burst tires, cars handle terribly, they also flip over in less than 5 seconds, and the police and FBI can kill you too easily, and it's impossible to get into a chase without getting killed, not fun.
Atmosphere - the atmosphere is not very bright, nearly everything looks grey and makes it feel like a fark,colourless hell.
Small size of the City - Liberty City is based on New York, but it is not totally accurate in this game. For one the size is all wrong, New York City is huge and the surrounding area has allot more to offer too. GTA IV fixed this problem and turned Liberty City into it's true self.
Also, GTA 3's rendition of Liberty City is all dark and grey, I have been to the real New York this game is emulating and it is much better, it is not dark like in GTA3 and only a next-gen game like GTA IV can accurately appear as and simulate the real life experience and real version of the City while the GTA3 rendition is not very accurate.]
So, I'm not denying that GTA3 is a good game, it is, LCS was better in a lot of ways, mostly graphics and atmosphere and GTA IV is the best depiction, but I prefer the real City to the gaming version any day.