When I looked after game 5, I saw a study that said baseball was least affected by the home field advantage, and hockey had the most. Perhaps that's due to the crowd influence on the officiating, since hockey possibly has the most judgement calls. But baseball is the one sport of the big 4 where the home team actually has an advantage in the game in that it gets to bat last, plus each field is unique so you could build a team that better suits your park. I also remember reading something about hockey years ago, that suggested the enthusiasm of the home crowd could be a disadvantage as players might push too hard and get out of position. Dunno.