A topic near to my heart: I just switched to Terex pistol grip after about 20 years of ALC levers. The levers are way, way, far better than the PG. Levers are totally ergonomic where the pg is not, they are easier and faster to do precision movements with, and when located at the front of the bucket (as opposed to between the boom and bucket) they are used easily with either hand which is another example of the ergonomics. PG sucks, and the only way I could get any smoothness, productivity, and ease of use with it was to tie shut the enable lever in the pg, the thing thats built into the pg handle which needs to be closed by gripping the pg before it will operate. Disengaging safety stuff is stupid but I couldn't get any decent performance out of the pg without doing that.
I could go on but the way of the world now seems to be pg. Btw terex makes levers too which are a joke as they have enable lockouts on each lever too. ALC levers have no lockouts. I talked to their service guy who has seen every type of bucket truck accident/mishap ever created and he had never heard of any issues with levers being accidentally activated by something other than the operators hand.
I talked to alot of people over the years about pg vs levers and everyone who had used both preferred levers.