As for tablets for me there is little that an iPad can do that an Android tablet can't but the opposite is very true. My company uses Android tablets running custom Apps for everything from electronic data acquisition, custom data entry Apps, 3D CAD drawing viewing etc. No way could an iPad even attempt to do this.
iPads do not have superior CPU's, graphic engines, screens etc. to warrant the highly inflated prices. The ONLY benefit is for those who prefer iOS over Android. In that regard both function very similar so its user preference. Android does have greater ability to customize the user experience through lower level settings and custom Apps that iOS lacks.