Which impy barrel is the best?

[DeAtH^MaTrIx]

I'm trying to choose between the Evil Driver, Stiffi, and the Dye Ultralite.
Which would be the best buy? Also are there any other Impulse threaded barrels that are just as good or better?

[Kowz_76]

Search and Look at the dang sticky. I say this 15 times a day, I thought you guys might catch on.