What's fun is the SUPER long lances seem to be longer than the AI soldiers' danger detection range or something.
Also, sometimes it feels like they're really careful whenever the player is couching (or else they die, but not before couching your horse down first) whereas the poke can still be stupidly powerful with a combination of (1) Power Strike, (2) Profiency, (3) Fast horse -especially Noldor Spirit Horse, of course - and (4) angle of approach that increases relative speed.
I find that there's some really nice long polearms (Black Iron Spear was mentioned, yeah) which combine a great range with high piercing damage. But then using the Blunt Tip Lance is so oddly satisfying because of that crunching sound.
Obviously, the Sarleon Banner lance is probably the best one in the game, though you can't take prisoners with it. Oddly, by the time I get it, I'm already so PS/Prof-ed up that I still down people really easily with the Blunt Tip so I keep using it anyway, even if the banner is kept in reserve.