I wasn't able to find this info so thought we could start it here to try and establish the brokers using best/worst rates.
I'm going to get the ball rolling comparing some brokers I have used to compare rollover rates. I'm using AUD/USD as the comparison. Please add other brokers and other currency pairs .
I've estimated these using info in their sites or checking the true interest rate payments received on transactions. Pretty sure that these are accurate enough, joyful for anybody including site reps to make any corrections or add their rollover rates.
Broker // Extended AUD/USD rate // Daily Rate
MBTrading // 3.75% // 0.01042%
IGMarkets // 4.38% // 0.01200%
GoMarkets // 3.46% // 0.00948%