Best Autotrader Broker

Any recommendations from people using Autotrading as to which of the supported brokers is the best at execution of the C2 signals (not necessarily the cheapest one)? Tradebullet’s web site says the following brokers are supported:

Supported brokers

Interactive Brokers

MB Trading

Man Financial

Rand Financial

Open E Cry

Patsystems (J-Trader)

MyTrack and TrackTrade

Frances (an employee of the company that created Tradebullet) emailed me that IB is the best.

What about Tradestation broker support?

That’s not possible.