Re: New to detailing with a few questions!
if you are going with a PC then you want no bigger than 5.5 inch pads with a 5 inch backing plate so that means option 2 is better right off the bat.
are you set on getting a kit though? For around the same money you can get some 7/8 inch thick 5.5 in flat hydrotech pads (tangerine and crimson) a couple MF cutting pads, and smaller bottles of compound/polish and some nicer microfibres
I told my wife that a husband is like a fine wine; he gets better with age. The next day, she locked me in the cellar.