LonesomeTonight's current T quite stably, the T that provokes all that discussion and polarization on this forum.

I've never felt any other Ts on this forum appealing to me beyond some usually momentary and superficial aspects. Yours, Echos, also sometimes but mostly for the creative/artistic ways he engages with you, that's something I love... but would not be challenging enough for me.

I would maybe also hire stopdog's T scrutiny process.