Optimal motor controllers?

[Ringo5tarr]

First of all, thanks for paying this post any mind.

Secondly, I've been looking through the possible options for motor controllers for my team in the upcoming year, as we have been pretty outdated purely relying on Talon SRs and (for our backup) victor 888s. From what I've gathered, the two top contenders for the current motor controller are the Talon SRX/Victor SP and the SPARK, however I've also found that the SD540(B) also seems immensely useful as well as smaller than the SPARK, so what does your teams use? What do you suggest? Are the SD540Bs the only ones that come in banking models?

Once again, thank you