ROCKxADIO420, WallieD, Tracer, and Seamus get my vote. Too tough for me to pick a "best".
I almost would have put in SEAN PABLO/69/whatever he calls himself at any given moment, but his lack of consistency prevented him from being in my top bracket. Semi-quality trolling, and fuck, the old sig that grew every few days really made me happy and made me think how he just missed making the cut.