Eh, I'm more of an Arcade fan. Sure, I much rather prefer stuff like the classic Need For Speed games to Mario Kart (not that I hate Mario Kart), but realistic stuff is the kind of stuff that I find hard to play due to only having a keyboard.
"Hipsters: the most dangerous gang in the US." - Pacific MackerelNeither? When I think of sim, I think of one of those set ups with a steering wheel and gear shift that cost as much as a console. When I think of arcade, I think of those pole position types where if you don't reach the check point in time you have to put in more coins.
Need For Speed isn't like either of those.
Modified Ura-nage, Torture Rack^Well, it's more like a blend. There's no hyper-realistic physics and the early games can actually be played with a keyboard (more than I can say for other modern racers that I've played that weren't Hot Pursuit 2010), but there is still a touch of realism (cars have more accurate behavior, it's possible to lose traction and drift, hitting stuff can force you to downshift, etc) and the cars are made with attention to detail.
"Hipsters: the most dangerous gang in the US." - Pacific Mackerel
Just scoping opinions.
Personally, I have no preference, I'll play Need For Speed: Hot Pursuit just as readily as Forza Motorsport 3.
Curse the ill fortune that led you to me.