Depends on which price point. If funds are no issue then a 3 chip dlp is the best, but they are very expensive.
In the realms of a more normal budget, single chip dlps will provide the sharpest images but will have weaker blacks, lcos will not be as sharp but have better blacks. Color once calibrated is very similar among equivalent projectors, dlp and lcd have the brightest projectors and dlps have essentially cross talk free 3d (both lcos and lcd cannot compete with dlp for 3d) and should handle motion better then lcos and lcd.
It all comes down to what you prioritize and of course your room will also effect what the more suited projector is as well. Some people can also see what is called the rainbow effect with dlps, I can't comment much on this as I cannot see it at all, it is something to be aware of though. Personally I would say LCD is the weakest tech but they also have some of the best projectors at the sub $5000 price point so the tech alone is not what you should be looking at, rather the individual projector.
Also SXRD as far as i'm aware is just another word for lcos.
There is as you can tell no correct answer (unless you are in the 'super' high end market) as both lcos and dlp have their pros and cons and lcd have some truly excellent projectors at the 'lower' end.