i'm using a trophy ridge alpha-1 hunter. single pin set to 25 yds. i'm about 3 inches high at 15, and 3 inches low at 30. i don't shoot much farther than that.
really bright, good adjustability (with 3rd axis levelling). relatively cheap too (about $35 on amazon). 2 deer in the freezer already this year with it--both taken right at dusk.