I have a Surface Pro 3, Surface 3, iPP 9.7, iPP 10.5, and iP Mini 4. I am a Windows user at heart, like the ease of having my Windows devices on a home network and being able to transfer files amongst computers easily. iPads suck at that as best I can tell.
My primary reason for trying an iPad was to deal with photos from trail cameras. I'd used a Dell Venue 8 Pro (Win tablet), screen too small. Surface Pro 3, screen too big. Surface 3, screen too big. iPP 9.7, much better, then iPP 10.5, and most recently, the iP Mini 4. It's actually my favorite for that right now because it's smaller and lighter and I don't have to reach far to tap the heart.
I don't like having to import all the pics from a card in order to view them full screen. Advantage Win tablets for that. I also don't like that I can't move photos I want to keep into a separate folder, but I've learned to use favorites to keeping the photos I want. Scrolling through photos, zooming, marking the ones I want to keep is much easier with iPad.
I use a file transfer utility to transfer pics from the iPad to the PC, but then deleting all the imported file folders is a PITA. Can't delete the folders, have to delete all the pics in each folder and then the folders go away. HUGE advantage to Win device there. I'm hoping that iOS 11 will change this.
iPads are my "go to" for web surfing, texting, etc., thanks to ASK and long battery life, plus small footprint. When I have heavy-duty work to do, it's a Win device, usually desktop at home and Surface 3 in the classroom.