I have both a N10 and an iPad3. I had the iPad3 first and I'm still using it daily. The iPad (3 or 4) is a better device to display anything you read. The screen format is closer to that of a magazine. The N10 is awkward to use in portrait mode and has to little screen estate left in landscape mode due to the Android notification and menu bars. For reading magazines, books, comic books and surfing the web, I prefer the iPad screen format.
Things change if you watch movies or TV shows on your device. In this case, the N10 is the clear winner. Its 16:9 screen format is great for this and it's also a lot easier to manage your files on Android than on iOS. In Android, you put your videos in a folder that is accessible by any app so you have the choice to play them with whatever player you have installed. On iOS, you must transfer the videos through iTunes and place them in the folder of the app you use to play the videos. Once there, the videos are only visible by this app because averything is compartimented on iOS. This is the same thing for other kinds of media (books, mags, etc) except for music.
Games: the iPad by a long shot. No contest here. Everything works great and smoothly for gamers on iOS. No slowdowns or compatibility problems. You get games that are perfectly tuned for your iOS device. Already a ton of Retina games and a bazillion of HD ones.
Apps: same thing: perfectly adapted to your iOS device. On Android, things are slowly changing and it's getting better but no contest here neither.
Memory: you can go up to 128GB of storage on the iPad; the N10 is limited to 32GB although you can hack some more with an OTG adapter but this is not an elegant solution, just a workable one.
The N10 has serious advantages for those who like retrogaming, like me. You have all those great emulators on Google Play and connecting a PS3 controller is great once you root your device and use the Sixaxis app. For this alone, I bought the N10. I tried the jailbreak way on my iPad and the emulators were less polished and I had far less choice. Also, messing with the iOS file system to load your ROMs is alway risky. I had to restore my iPad once just after loading some files on it. No, jailbreaking an iOS device will not get you anywhere the liberty you have with Android and especially with a Nexus device.
The N10 (and Android in general) is also better if you want to access files on a server. I have a NAS server and I can stream movies and TV shows from it without any issue. The N10 is fast enough to play HD movies without hiccups. On the iPad side, streaming movies is a lot more difficult because it's generally done through DLNA and some file formats cannot be read.
I hope this will help you decide. Both devices are great.