Best Broker for 1 Contract per day?

I am looking to trade 1 YM contract back and forth all day. Which broker will be best for such a small trader?

 

Velocity is good

 

openecry

 

No particular order

Velocity,
Mirus,
IB,
OEC.

First 3 have 3rd party front end options: Xtrader, Ninjatrader etc. OEC has its own which is not bad.

Disclaimer: Have accounts with all 4.

 

But Velocity Futures tagline is: derivatives trading services for high volume traders. I am pretty much the opposite of a high volume trader. Is it still good?

 

Still good for what? Commish? No. But for 1 car back and forth all day, if you want rock solid execution, professionalism of service, phones picked up when you call, then you're set.

Whats wrong with IB? Other than higher margins. With zero line trader and IB you can be the King of 1 lots.