Truggy selection after first race..

HI
I raced on the first electric offroad race in my country (Turkey) this weekend. Our class was mixed (buggy, truggy and monster) because of the lack of competitors. Our track is very very rough as you can see partly below.(Actually a lot worse than you can see:)).
http://www.hobbyrc.com/forum/threads...er-ve-Videolar
I raced with a brushless converted hyper 8 pro buggy ( the yellow one on the pictures) and came third at the end of the day after a mbx5T and a Vorza driven by an experienced driver. I lived a lot of problems because of the rough track with my buggy and decided to drive a truggy for other upcoming races. I know I could drive much smoother because of the track conditions but come on this was my first race and I need a car more easy to control and durable. I choosed the truggy for controlability but which one for durability?
It shouldn't be the most pro or most adjustable chassis but have to be strongest one. I'm considering jammin X2 crt, Cen matrix tr arena and Mugen mbx6T. Actually Mugen is a little expensive for my budget if it has a significant advantage on durability I'll try to buy it.