The Maxima only needs the Front Rotors, I want to know anything im suppose to know about them, honest answers on both cars. are they reliable even with the high milage
Any car with high miles is not going to be reliable. There are way too many components that can go out at any minute when a car has been driven that many miles.
But you have to weigh that against the price you are paying. $1000 for a Maxima is a pretty good deal if it still looks good and drives good.
I would not buy the Infiniti. Although it is a Nissan product and probably shares many components with the Maxima I think it's too old to be worth considering.
You need to pay a certified mechanic to do a thorough pre-purchase inspection before making any decision on these old cars.