I hate it when producers "waste" their models by sticking a few edited drags in a clip rather than the full scene, smokingmodels/erotica is the worst offender of this imo (along with some annoying "soft" lighting effects) such a shame considering the quality of some of the models.

For me Specialized videos is by far the best(despite some slightly iffy recent "paysite edits").

Smokingsweeties, Randomsnaps and IRL also produce some great scenes (although I wish IRL would sort the video quality of the downloads via smoking flicks as for the price I think the bitrate should be much higher).