We had a chance to test and compare two models: Epson 3100 vs Optoma ML750ST and this review should help people who are looking for a good projector. Based on our rating, both projectors have the same overall rating of 7.
Advantages Epson 3100 over Optoma ML750ST
Bigger projection screen size: 40-200 inch vs 30-80 inch
Better brightness: 2600 vs 700 lumens
More HDMI connectors: 2 vs 1
Advantages Optoma ML750ST over Epson 3100
Lower noise level, 22 dB vs 24 dB
Lower power consumption, 77 W vs 356 W
Longer lamp life (normal mode): 20000 vs 3500 hours