I don't get Apple-hate , but I have to recommend you an iPad 4 because its the only "finished" product in the market .Even lot of people who carried Android phones got samsung tabs and android tablets but they all sold their android tablets and got iPad 2/3/4's and all felt positively (yes some of them are also anti-apple)
Android tablets and Windows 8 tablets are still not very polished experience as of this year.
These are the issues you would face :
1.Android tablets of any kind : They lag and even browsing a simple page triggers lag (if u are iOS/WP user , you would notice it) and apps are pathetic.Sure , you can have fun in open world but after a while , You feel the need of polished and optimized apps.
2.iPad : Good at lot of things (probably the best) but you need iTunes and its a closed platform but you have countless number of QUALITY apps and games but again a closed platform like i said.
3.W8 : More powerful and More functional but issues everywhere being first gen devices
So , either wait for next sweep of windows tablets to arrive or get an iPad/Nexus 10
Screen Quality of iPad is extremely good.It still has the best screen on par with Nexus 10.
If u want a great screen , only good ones i can recommend are Nexus 10 or iPad 3/4 , remaining all won't come close on long term.