Well this is a hard choice for me.
I love the wheels that have a deep dish about them, or just the rear is wider than the front. I couldnt choose a favourite, but here are some:
X5 19" Sports package, 20" 4.6is, Ferrari F50, Ferrari 360 Modena, Ferrari 550 Maranello, Lamborghini Murcielago Barchetta/ Gallardo, Audi RS6, Nissan Skyline R34 GTR, There are tons more.....there all so nice