Why aren't there any horses in the poll ?
Once upon a times, archers were killed by behind by ninjas, who ran during 2min just to get thoses 2-3 longbow archers. While main infantry could split and attack from both side.
Now, all act of flanking/separating, usually ends in cav killing one all group.
Who needs ninjas when cavs can do the work twice as fast, twice as much, and also kill other people efficiently.
ME WANT NINJA BACK ! Infantry clusterfucks, so that agi becomes interesting again, to go all around and flank the main forces, that's thrilling !