which is better in your opinion? (and why will help too)

i think the is250AWD its so sexy i want it but can afford it plus the g is kinda like the maxima (more like the skyline) and nissan has gone down hill there not that good anymore

It depends, a G35 gets you more car for the money. It's faster than the IS250. It has a more sporty feel which makes it more fun to drive. However, it has a large engine and is a bit of a gas guzzler compared to other cars in its class.

The IS250 gets better gas mileage than a G35 because it has a smaller engine. However, the IS250 handles more like a "family sedan" than a sports sedan. Toyota (Lexus' parent co) is historically more reliable than Nissan (Infiniti's parent co), so, it's likely that the IS250 would be more reliable than the G35.

Overall, you can't go wrong as they are both great cars. I would test drive both and choose the one you like driving better.

get G35! more power ... :)

I think you are right .It depends upon the requirements of the purchaser.Lexus 250 gets a better mpg gets a better mpg because of its smaller engine.Lexus 250 is a family car.I love to have this car in my garage.