I don’t have any ranking, but my top 5 IMM taggers of all time are:
BV, Nro, Kame, EEK, and Blackadde.
BV’s always been one of my favorites. I remember oh so long ago when a lot of the newer taggers weren’t around, I saw him start the first Showcase Thread. tear Those were the days.
Nro has one of the most complete vector styles around. When he makes something you know it’ll be 100% and it’ll be great.
Kame, him too. I remember the first couple Showcase Threads he would frequently post up his works which often included backgrounds with radial blurs. But now look at him, he’s really stepped it up into a great tagger. Gotta love his work.
EEK is/was the great animated image master. I specifically remember one av/tag he made where he took a still picture and made the girl’s hair move and wave. That was great. And it’s great to see him around.
Blackadde always has great work and is pretty much the only one here (I’m not saying the only one) in IMM that uses 3D in his works. It gives another outlook on image editing for others who aren’t familiar with 3D, not to mention he does his work well. I especially liked that Jesus tag that he made for PenPen.