Though I agree with the skywars being dead, islands is not. I'm on regularly there and there are also other players who come on that server on a daily basis. Usually between 5-20 come on a day. Though it may not be the biggest server but islands isn't dead.
I agree with Catmaster2000. Skywars is dead, whilst Islands still has at least 10 - 15 or maybe even 20 - 25 players on at least every week or maybe everyday.