You should definitely take math 2, but be warned it is not “easy.” It is just that the people taking math 2 are generally smart so the percentiles are extremely low (an 800 is 70th percentile I believe) and the curve is fairly low. There are a lot of topics to review so get a barron’s book (harder tests than the actual one). One thing that will boost your app is covering the different fields (one in math, history, science, english).
Are you kidding me, a 780 is probably top 1%. While the lit test is hard, this should not be the reason why you refuse to take it. I would recommend taking math 2, physics, any history, and maybe lit (4 seems excessive though, I only took math 2 and physics). Note that you can only take three in one sitting (DO NOT RECOMMEND) so plan on multiple test dates if you want to do more than two.