Asus Pros: bigger screen, 8gb more ram, SSD (256GB)
MSI Pros: Better cpu, 350$ less, 1 year more warranty
Graphics card is the same
The asus will be faster for normal streaming since it has an SSD (not sure if u can add an SSD to the msi)
The 8gb extra ram of Asus wont be needed unless u are running some really ram eating programms.
The MSI better CPU might make your laptop more futureproof.
I have no idea about cooling though