What rc helicopter should i get?

Should i get a
symaS107
http://www.shoppingsquare.com.au/p_58376_Syma_3_Channels_Micro_Helicopter_With_GyroScopes_System

U807
http://www.shoppingsquare.com.au/p_58432_3Ch_RC_Helicopter_with_Gyroscope__U807

or this FJ751. My brother has one and its good he averages 10 mins flying time from fully charged to unable to move off the ground from a 30-50 min charge. only reason i might not get this is because the black stabilizer some times when you make a sharp turn hits the bottom blades spinning in the opposite direction and may eventually break the blades. He has had it for about a month now and no problems to date.

http://www.oo.com.au/Remote_Control_FJ-751_Helicopt_P48189C292.cfm

U807