My vote goes for http://dx.com/p/ainol-novo7-crystal-quad-core-7-capacitive-screen-android-4-1-1-tablet-pc-w-wi-fi-camera-white-204367
1) Ainol is among the few chinese trusted brands, in terms of quality and reliability 2) I have bought an ainol novo crystal 7 , as pointed out by die2mrw007 earlier, and I'm pretty satisfied with it in all aspects of tech :- display, ram , internal storage, quality , looks.
3) It has the best specs , amongst all the available options in that 100$ budget, quad core cortex a9 ATM7029 processor with 1gb ram and a 7" 720p display, which is appropriate for tablets. Next Giveaway suggestion: Anything to do with tech , would do just fine ! If you want specific suggestions, then preferably a-jays or any other good headphones or any mobile protective cases would be epic !