Low poly, low textures, Do I cartoonify or try realistic textures?

Here's some background before the question:

I'm developing a game that is action-puzzle orientated but it uses a real-life theme (destruction derby). The game is not a destruction derby game, it's more of a novelty game involving the player trying to do stunts/tricks and generally smashing things up. I've used real-life objects but I oversize them to make them comical...

Also, it's for the iphone so I don't have lots of room for lighting effects etc.

Here's the question:

Would you prefer to see crisp, colourful cartoon graphics or try to create as realistic graphics as possible? (eg, RealRacing or 2XL Offroad)

I know cartoon graphics will look cleaner but damage/explosions/sparks looks better with realistic graphics.

What you think?