You made the right choice
Both are great bows, but I think what you get when you ask the question you have, as many have before you, is very polarized views because in terms of feel and style they are rather different. Both are great performers however.
Personally I prefer the ACS (I should as I have 5 of them), I tried the Morrison and it just didn't do it for me, great bow but not for me, which was a disappointment as I really wanted to love it as it was a great looking bow.
One thing you mentioned was arrow weight which is why I'm posting after the event, I favor a nice heavy arrow and the ACS will take anything you can stick through it. I reguarly shoot 600+ grn 80# spine woods and super light Ali's through my 45# ACS, it can deal with anything and being cut past center you can tune the bow to the arrows.