I agree, but when talking about 4 strokes I do like Saitos because of its lightness and easy operation, when talking about 2 strokers, the feeling is different, as have been said there are a lot of good engines out there to choose from, I would just say that in my very personal opinion I would not buy any Tower Hobbies or Evolution (glow), about gasoline engines my experience is not that much to have a right answer but I have seen that Zenoahs work just fine (just a bit heavy than other brands) DA looks like a brand that many big 3D fliers like the most and I would stay away from Fuji Invac engines.
Just personal choises.