I'm in a sort of same boat. I have a 6s Plus, and am looking at staying with Apple with the 7 Plus or going MUCH cheaper with the Honor 8.
What do you think when comparing the Honor 8 to the iPhone 7 Plus?
Hi! I know you weren't asking me specifically, but I'll lend my two cents.
I would find it a little bit difficult to truly compare the two, as the iPhone 7 Plus is a flagship device and the Honor 8 is a midrange device; however, the Honor 8 does have a lot of the similar specs of last year's average flagship at a great price. It is also somewhat similar in aesthetic to the iPhone line, in my opinion, but (also in my opinion), the Honor 8 looks better (also, I'm more of an Android fan).
Also, if you're going to compare the two devices, if things like camera, video taping, etc are important to you, then the quality of photos/videos on the Honor 8 - though they're quite good - will not be on par with that of the iPhone 7 Plus.
The Honor and iPhone do have some similar OS components - like no app drawer, for example, and apparently their lock screen operations are similar? Again, I don't have any concrete experience with Apple, this is just what I've read and heard around the forums or with other users - but Honor does have a different operating system called EMUI, which has received mixed reviews.
If you're trying to save money and are interested in a unique and also budget-saving experience, I highly recommend the Honor 8. However, if you're really into Apple, are familiar with the OS, and enjoy the media aspect of the device, I would recommend Apple.