I enjoy driving my Losi 8ight. Racing the car come easy for me as I use to drive 10th scale electric. Twitchy fast and rail style handleing of this car feels comfortable to me. Parts are very easy to find. These are the two main reasons I picked the 8ight.
Of the issues in the 8ights design... there are a handfull of parts you really should upgrade, but I think most cars are the in the same boat. The car does take quite a beating but I can tell the 8ight does not appear to be as tough as other cars. Your driving style better match what the 8ight has to offer or you may find yourself frustrated. It's fast but not forgiving in driving errors. Though I don't know if this is my driving or the 8ight I found I can make up time on most even after a mistake.
I don't know how other cars react in the air, but I find that I have a lot of control mid air with the 8ight. I can land the most crazy take offs.
I can't speak to the other cars as I have not tried to build or drive them.