I've tried all of those -
Avid Hiver :)
About dCity.... you don't need to compete for the ranking board, that one only make sense for Hive rewards, that are not much overall. The real rewards come in from of the SIM income, that is totally controlled by you, regardless of the ranking and when you started. In the beginning I was ranked in the top 20 and had 1000 SIM income per day, now I'm 150 + rank and have 7000 SIM income per day :)
Anyway enough shilling dCity from me ... there are always risk and personal preference :)
Good luck to you, but as you say - it really is just personal preference, not my kind of game!
And you can't play them all anyway.
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