I would have to say the engine bay for me is the biggest pita for me the white shows everything !! Under the hood
and the most cleaned part on the car is the rear trunk and bumper because the white shows all the dust from driving

 

Im surprised no one said bugs on front bumper LOL..

 

Definately under the hood because my daily driver and all the crap that gets stuck under the cowl where the wipers are! uggggg! pine needles, pollen thingies, leaves! grrr!

 

The bugs are not so bad as long as the finish is waxed often enough. Sad part is seeing all the pitting in the finish that look like bugs - can't wash 'em off.

 

lol man so true !!

 

RE: road rash
I saw this link once in a search. Never ordered it but wonder how good it works.

Dr. ColorChip stone chip repair touch up and road rash before & after photos

 

Windows. I hate cleaning windows. Especially the inside of the front and rear windows. Also hate doing the underside of the side rocker panels.

 

under the hood sucks, but i have overspray on my car right now, that is terrible to fix

 

Where is the overspray? I hate when there is splattered dried wax that you can't get to or get off

 

everything is almost second nature to me since i do it everyday....but i would say the rear window has to be my least favorite thing since i am tall...i hate climbing in the back of cars to do it lol