Jimmy Enslashay
I found GTA 3 harder than Vice City, but GTA 3 wasn't too hard. Vice City was a piece of cake. San Andreas takes longer, and some missions are very difficult. San Andreas is harder than GTA 3, but we weren't as experienced with GTA 3 as with San Andreas.
I'm not sure about how to compare the 3 games in overall difficulty.
Some things in San Andreas (so far anyway) are a piece of piss. The Valet and Courier missions are ridicilously easy. Valet wasn't a challenge at all. The Courier is similar to Pizza Boy in Vice City but
far easier. I could have passed it if I was shot full of morphine. I've just done Paramedic and because there's so many places to choose to do it, there's at least one
very easy place to do it.
There's obviously more of a challenge to finding all the hidden things in San Andreas because there's so much more of them, but I suppose I'll get bored looking and eventually just find a map or guide.
The Dodo in GTA III was daft. In Vice City, the Sea Skimmer was easy to fly but pointless, but the planes in San Andreas are a bit of a challenge without turning the game into a flight sim. The Hydra was definitely a challenge to get the hang of.
I haven't tried San Andreas taxi yet, but I found Vice City's taxi mission harder than GTA III. In GTA III I could keep going until I got bored, but in Vice City I found it gave you less time and seemed to have a bug where every so often passengers wouldn't appear on the streets for ages.
GTA III had a few definitely harder things about it - Paramedic was harder, the Rampages were a real challenge (Vice City's were far easier). But Firefighter was much easier, but longer and more boring.
Overall I didn't find much difference in difficulty between the 3 games main missions. San Andreas just has a lot more of them to do. I found the last mission oddly easy. In Vice City and GTA III it took a few attempts to get it done but in San Andreas I finished it first time.
KM.