There is no way to “make your trouble spots to away!’ I have been asked this question the MOST during my 32 years training.
Most people want to get rid of the areas they hate becasue they have been with them the longest and will be the very last area of the body to respond to exercise.
There is no Best: it all depends on your ablility, your goals, your fitness intelligence and fortitude.
My mantra is do some of everything.
There is not ONE exercise that will do EVERYTHING