Mine is skyblock, not sure why this server in particular but this server has been one of my first 10 servers ever and still playing on it. The reason im still here since 2013 was because of the community back then. It was nice, helpful, funny e.g Not saying the community now is bad but it just doesn't have a lot of members. Anyways my favourite part of the server would be skyblock and the community i guess???? =P
probably how loyal i am to it, the community was - and basically is - still so nice, but around '14-'16, the server was really thriving