You can use this site as a reference to see the comparison and the calculating of profit sharing / staking rewards from each active delegates

https://calculator.ark.land

if I check it looks like arky delegate gives the best profit / staking reward,
with the amount of 100 Ark that you stake it will get 0.01% of the total profit sharing from Arky delegate,
with this amount you might be ranked 186 in the list of arky delegate voters as you can see here =

https://explorer.ark.io/wallets/ARfDVWZ7Zwkox3ZXtMQQY1HYSANMB88vWE/voters/8

and there is an example of one of the voters with almost the same amount staking and there is the staking reward that he got with 105 Ark he had =

https://explorer.ark.io/wallets/AStAGm3XXC1qQUrgr4idNG45kTWGXF4kRX

if we look at the date of rewards distribution from arky delegate it seems like he pays every 5 days to the voters