There can be slight disparities in price between brokers, as the banks that give them quotes may have bid/ask quotes slightly higher or lower than other banks based on supply/demand, whether the brokers chart prices are "bid" based or bid/ask "average" based, and spread differences between brokers. Two or three pips is not a big deal in my opinion.

__________________
"You should not have a favourite weapon. To become over-familiar with one weapon is as much a fault as not knowing it sufficiently well. You should not copy others, but use weapons which you can handle properly. It is bad for commanders and troopers to have likes and dislikes. These are things you must learn thoroughly." Miyamoto Musashi