Research has recently been carried out on variations of deadlifts on hamstring muscle activation. SLDL was shown to be the best. If you relating the lifts to Snatch and CJ then posture control is critical, therefore SLDL would be more beneficial. Variation can be added with clean grip and snatch grip SLDL.
If your training is not as specific then use both lifts for variation.
What program are you using these lifts in?