I have only seen the Traxxas QR-1 and (twin) Hubsan X4 H107. Would rather spend a minimum and still get maximum fun. The aerobatics of these two look like great fun, and I would guess better than another type of heli.
Jang states in this review that he would buy a larger unit for the same price; http://www.youtube.com/watch?v=jVnBj_koX-o
Do you know what he may be talking about?
Good prices here, but what about the value/performance?; http://www.xheli.com/rtf2.html
I will still consider the QR-1 at the higher price.
Syma X1 looks interesting; http://www.youtube.com/watch?v=ybhIn6IKvx8