Unless you are going for label appeal, there is no sense in wasting good whiskey on soap.
And while the alcohol may smell good going into the soap, you're not going to have any scent coming out. You'd probably want to look up the 'notes' in your alcohol and then find a FO or combination thereof to give a similar scent.
And then there is the alcohol itself to deal with. Alcohol and CP soap doesn't mix very well because of the alcohol itself and high sugar content which can cause volcanoes and seizing. Beer (in the US) has an alcohol content of 4% to 6% by volume, wine has an alcohol content of 12%, hard liquor has a much higher content...between 40% and 70%. Check you label. Anyhoo...knowing the alcohol content tells you how much you're going to have to reduce you liquid to burn off the alcohol or how much more you going to have to add for xx amount. Let's say I want to use an ounce of Pendleton Whisky (only for someone I really, really, really like)...at 40% alcohol content, I would need to boil two ounces of whisky. Why the extra amount? Steam.
All of the above, except for the first line and how much I would have to like someone to use good whisky is based solely on research. There are tons of YT videos and some very humorous accounts of using alcohol in soap available on the webs.