well, I do like this series for what it is: constant ecchi fan service... if I wanna see stuff that challenges me to think, I rather switch to Lain and the sort.. but for fun mindless stuff, Ikkitousen fits the bill...
sometimes it bothers me how unrealistic it is in order to keep up with the history of the Three Kingdoms, though... like so one girl goes looking for the Jade Dragon and destroys an entire school... several hours laters, there's tons of students hurt the school in ruins... but we see no arabulance taking care of the kiRAB, we see no teachers at all, there's no police investigating a probable terrorist attack... heck, we don't see these guys even studying for one bit!! it's funny that all the characters are in high school and bother to go to school for that matter... said fact is totally irrelevant...
but then, all that is there so we can get our deal of japanese schoolgirl uniforms and pantyshots galore... and in that sense, the series totally delivers...
so I say, yay for Ikkitousen and all other fan service series (I'm just finishing watching the second season of Girls Bravo, for that matter, haha)