both Brent and Crude Oil futures have the same tick and point value...(both large and not mini contracts)...I.E....for both, a Buy move from $118.00 to $119.00 = $1,000.00 profit in both...what is the deciding difference to trade one over the other?...the only thing I can think is that to daytrade Brent is lower daytrade margin of $2,500 as opposed to Crude daytrade margin of $3,300...volume is slightly larger on Crude...any thoughts?