If your new to racing 8th scale you may want the Jammin. It is a very solid and dependable buggy. The best drivers can run just about any buggy and be fast and have very little breakage.
I can't comment on how the Losi drives - but it breaks more and has more issues than the Jammin. The Jammin is a very dependable buggy and parts are available even if you need to order them. I've found most local hobby shops (in my area) don't carry the parts for 1/8 buggies. If you have a local shop with parts selection for a buggy - that should be a factor.
Keep in mind that much of the advice you get is from experienced drivers who can make many laps on a clean track without crashing. If that isn't your situation - buy a dependable buggy you can grow with.
My opinion is the Jammin or Mugen are a good bet.
I run the Associated and it isn't a buggy that will take abuse like the Jammin.