I do not know the exact NAMES that you are referring to, but again, you are buying the most expensive and most important part of your RC car (engine) I will definitely go for the NAMES for the performance and the liability (just like you will buy Mercedes Benz over Toyota....) especially you have the sky high budget...
JP, Nova MAX, Collari, Sirio..........etc, those are the few popular names with mod engine line up........but if I have to pick, defintiely JP or MAX. I rather see anyone complaint about those engine are slow or weak, they only complaint about their price are too high, lol....
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