[handoflixue]

Reddit lets you sort by Best (default), Top (highest raw score), New/Old (chronological), and also Controversial - no add-on required. It's right above the first comment.

"Best" is a time-weighted blend of scoring, so that well-voted but late contributions are more likely to be visible despite fewer overall votes. Certainly not perfect, but helps bias away from "first to comment wins"

[cwnyth]

Except that most people just go with best. Tons of new comments are shouted into the void, never to be heard by anyone except for a handful of the curious.