For me it is cleans or squats. Bench press doesn't even make my top 5. I think I could really accomplish the same things with either of those two exercises but I'd just need to alter other aspects of the program (assuming I stick to the hypothetical task of only doing one exercise) depending on which one I chose.
As a related note to some of the comments above, I frequently use percentages upwards of 90% in training. Overall, I'd say that most of our 'work' sets for the OLs are about 85% although we do use lower weight sets. One of the thing I like about heavier loads in group settings is that they force the athlete to train with the desired intensity. If for example, the exercise prescription called for 5 x 3 @ 70% with an emphasis on speed, the athlete could pretty easily just go through the motions because the weight is so low. This can be problematic in group settings where it's difficult to monitor every single set.
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