i just went to the store to handle a lot af pistol and i bought an m&p, i know you dont like-em but man these pistols ergonomics are so good, if i ad a second choice (prob will be a next purchase) the cz75 sp01 is also realy nice fitting in my hands.
for the beretta 92, they had a brushed metal one and i really liked the feel of the grip and the looks but the mag release is not well placed ( for me ) i have to shift my grip to get to it ( bye bye fast reloads ) .
hope it helps you
in the end the best for you is to do the same thing, tell your sellsman that you need to handle quite a fiew pistols and you will make up your mind on your own.
but one thing , if you do spend 2 hours in a store please buy it there!