Like many question in life, there is no single answer to this question. This should not be surprising, since different users have different needs, intending to use their projectors for different applications and have different cost constraints. I have provided some information in the next section of this article about what’s good and what’s not so great with each of these projection technologies. A good starting point to see how projectors compare at different price points to take at look at the following two reports here at Projector Review:
For highly portable business class projectors, single chip DLP projectors, using LEDs as their light source, are the smallest and lightest available and are low priced. You can either go with the truly miniture LED-based pocket size projectors with their limited light output or with the larger LED-based pico models with higher light output. You will find the links for reviews of both classes of portable business projectors from the Projector Reviews home page. Check out our Guide to Pico and Pocket Projectors.
For more tradition full size business projectors both DLP and 3LCD models are popular. Check out our a Guide to Business Projectors.