Are there any advantages to choosing a smaller/less popular Club ?
Yes there are. Firstly, because there is less demand for the smaller/less popular Clubs, a User will probably be able to start managing right away (choosing a larger/more popular Club will probably mean having to wait). Secondly, smaller/less popular Clubs allow a User to create a stronger manager profile (choosing a larger/more popular Club restricts a User from doing this). A strong manager profile is an advantage because it increases your ability to influence the results of matches through training, squad selection, formation, tactics and substitutions. Thirdly, because smaller/less popular Clubs tend to be in the lower divisions (where squads are typically smaller and less-skilled) a good manager can usually get excellent results more easily and quickly there than in the higher divisions.