very rarely against the majority because the risk is very large, in certain matches for example many people who like a team that is known to always be able to win a match or it can be said that the team has never been defeated, but when meeting an ordinary team of course most people will be more choose the most favored team.
This is suggested to go for the team in gambling who has great history of winning games. This is stupidity that you choose a team just on the basis of illogical preferences such as your favorite player is in that team or your crush is supporting it etc. you even not follow majority, you should must follow logical preferences in order to increase chances of winning.