What do you mean? Is it easier to play with controller than keyboard? I don't know because I've never had one. But how can it be easier? What's the difference?
Mess with mods. Maybe. And make some of my own. Then cruise around the city with some new mods. In game with no mods the missions are unbeatable. There's nothing more fun than that.
Car - Jester (For it's handling and speed)
Bike - FCR 900(For the relaxing engine sound and great handling)
Plane - Hydra, Shamal (Hydra for everyday use and Shamal for design)
Boat - Squalo (For speed and design)
Helicopter - Leviathan (For design. Slow but nice)
Jester. No picture, sorry, but you all know what it looks like, don't you? By the way, i used to run a racing club with it. So I don't think my opinion will ever change about this car.