I made the scorecard for beta 1.2! Runner-up for "mines placed". That's some really good community management. I do hope that this type of score-keeping persists into v1.0 and beyond.
But I digress.
I'm an ascii die-hard when it comes to roguelikes, except when it comes to DCSS and Cogmind. Almost invariably, I choose a ascii over a graphical tileset. DCSS has had such broad community support over decades of development, that it stands to reason that its tileset would be good. It is good for different reasons than cogmind's tileset. Even in dwarf fortress, ascii is vastly preferable on account of readability. That's what Cogmind's tileset has going for it. Small tiles mean that I can fit a large area of the play-field on my screen. Strong contrasts (something sorely lacking from ToME's tilesets) make it easy to discern NPCs from terrain, and a sufficient degree of variance between robot models allow for rapid identification of potential threats. Seriously, these are some of the best graphics I have yet seen in a roguelike, and that's even before consideration of graphical effects like explosions and emp (a page out of The Book of Brogue, I reckon). Colour me impressed.