I'm not sure how they "lose" with their arguments. You claim to have purchased the iPhone 7 Plus because of the bigger screen. Samsung has put an even bigger (more biggerer?) in nearly the same sized body. That's literally accomplishing what you would consider a success. You could argue about the desire to have a smaller screen for the iPhone 7; however, even that argument is spurious as the smaller screen would - following Samsung's blueprints - fit in an even smaller phone. There are definitive reasons to choose Apple (brand loyalty, ease of system, product cohesiveness, the Apple ecosystem, etc.), but if you're simply comparing screen sizes and screen size to phone size ratios, Samsung wins this time.