I chose the patriot sc and have absolutely no regrets about doing so.The liberty is a very good bow and very smooth but with my draw length of 28 in i wanted to get more speed for the money,thats why i chose the patriot.It is smooth on the draw,maybe not so much as the liberty,and probably the quietest bow that i have ever shot or heard.The liberty would probably be more forgiving because of the 1/2" extra brace and a little longer A to A.
I have mine with the 70 lb limbs and it is fast,quiet and smooth.Either choice you make will be a good one as they are both excellent bows.
good luck with your decision