I managed to kill half of Illyich's party before I thought it was a moronic waste of my time, and uninstalled it. I think I ran into the small tunnels to avoid the giants, but I might have remembered wrongly.
Other than that, I've beaten Improved Maevar with 1 Sorceror (me), Aerie, Edwin and Jan. By that time I already had Bracers of AC 3, so I dropped my Sorceror's AC as low as possible. I prepped first by casting Mirror Image, Blur, Stoneskin, Melf's Minute Meteors and Protection from Normal Missiles on everyone except Edwin (the clown can't cast Stoneskin). I then went down the stairs, and threw four or five webs into the T-junction near the stairs. Almost everyone got stuck in that thing, except for Maevar, who was Mislead and invisible, and kept trying for a backstab. My party then stood on the little stairs and threw fireballs and chaos spells into the mix, and I believe a chaos spell got to Maevar, who proceeded to backstab at least three of his own archers. Only my Sorceror stood away from the stairs to draw Maevar away from the rest. After waiting for the Mislead to expire (and recasting Stoneskin and Mirror Image for my Sorceror), when Maevar appeared I Breached him immediately and pelted the fool with Minute Meteors. I must say, It was a matter of luck that I didn't get backstabbed. A possible way to remove the Mislead could be making Jan invisible and sending him into the fray, detecting traps all the way, because his detect illusion skill is quite high. However I think Maevar sees through invisibility, and I'm not sure how to get Jan through the webbed area.
I've beaten Improved Bodhi before with two characters, a FMT and a CR,because Sola got converted and Tashia ditched me. I don't remember how I did it, but I know it involved alot of running away and casting invisibility, protection from magic weapons and creeping doom. Improved Hell was another pain in the ass - again, PfMW and NPP were lifesavers, especially vs. that idiotic level draining sword. And Kuroisan was a matter of casting Mass Invisibility, PfMW, a large number of PfAcid scrolls, and Breach. After a while my FMT managed to get through and whack him to pieces.