I do both and periodize the use of each. Because I was not able to sprint as much and my static strength in the squat is plenty high, I decided to spend a bit more time on things like snatches. I put up 212lbs after a fairly tough workout and almost got 222 not long ago in the powersnatch, so that has finally gotten up nicely. I think the snatch variations tend to be a little bit more posterior chain dominant and I feel like I recover from them better than clean variations. I also have a bit better form on snatch variations, so that may be at play as well. Overall, I think the effect is similar between the two of them and there may be absolutely no difference in the effects/benefits gained by each.