IMO one thing youre missing is:
How will this gear feel in 2 years after every day use?
The Shimano's will be smoother. There is something about Shimano and Abu reels that the longer you use them the smoother they get. I Own Shimano, Diawa, Abu, Plueger, Quantum and BPS reels. All where purchased for a particular use. My last 5 reels were Shimano as I learned something. Smoothness is nice but performance is much better in consideration for a purchase. I have found that based on my style casting Shimano fits my needs. This may not be the case for everyone thus brand loyalty. I believe the same goes for rods as I also have numerous manufacturer rods. Some cast better and some have better sensitivity. I guess to each their own, after-all most spend their own money.