My golf pro uses pitching as an example for "loading up"I vote for baseball. There are just so many parallels between the golf swing and baseball swing (loading the right side, clearing the hips ahead of the chest and shoulders etc.) that a lot of the same principals directly translate from one to the other.
I got paired with a couple of minor leaguers a few years ago. Both pretty big guys who were decent golfers. Outside of tour pro golfers, I've never in person seen anyone play golf who clearly understood how to create club head speed and power as was apparent with these guys. They both hit the ball an unbelievably long way.
Slow back swing and loaded front follow through.