I think you've got three of the best cars listed, but I don't really think there IS a best car.
I, personally, like the NTC3 best mainly because of its clean design - no straggly wires that have to be chased down and zip tied and a nice box for the receiver - makes filling not so much of a precision job, no worries about spilling on the receiver. It's not really all that fragile (as is the fear of many) - trust me, they don't call me Boomer for nothin!
patella is right, though, if you're a beginner stay away from the Yok, the mtx3 and the serpent. They're all more advanced cars.
wow, I just restated half the posts. . .okay, shutting up now.