Maybe Floris Mod Pack, it's a general improvement over vanilla without being a complete overhaul.
1. Do not use, for attacking, "by arrow keys" or "by movement keys," keep it at "by mouse movement." To swing left, move your mouse left slightly and left click. To block up, move your mouse up and block.
The AI does not (almost ever) bother to block your attacks. In a fight against a player, "feinting" (swing left, block, attack from a different direction) can confuse/overwhelm them and cause them to block incorrectly- doesn't work on the A.
2 ways
While moving quickly, x to couch the lance, it'll hit harder but be less maneuverable
Another way is to hold LMB, if you're moving at full speed you need to release (with a "light/heavy" lance, about the same length) 2 full horse lengths away from a still opponent.
The combat is about timing and distance.
If you're fighting another player who has 2,000 hours in game, you will lose. You will continue to lose badly for a long time. I found the best way to improve my skill was to go in duel servers against players who were infinitely my better and play against them, for newer players, it actually helps against the AI. If you can't block the AI while its just attacking you for 10 seconds, you have no chance against a good player. You can go to the training fields, ask the guy to train you, he'll send repeatedly more difficult AI against you. They can help you learn to block, which is necessary if you don't want to be shit at multiplayer.
The fastest way to be a thorn in everyone's side in multiplayer is archery. If you can learn how to be an obnoxious horse archer, which shouldn't take more than 10 hours for you to be passably okay at judging how high you need to aim up/how much you need to lead your shots, you might actually be able to get a sense of how fun the combat can be.
Also, play at a high sensitivity. Maybe not 100%, try 70% minimum, up to 95%. You should be able to block without sliding your mouse across 3 feet of table, you want to be able to make quick movements, right click, bam you'rewit blocking.
REALLY BAD HABITS FOR MELEE:
-Releasing your block without waiting for the visual/sound confirmation of your opponent hitting. Newer players will often block the correct direction, but their opponent does a "microhold" or a "hold" where they just.. hold their attack for a bit, and they release their block and get hit. Don't do it.
-Feinting every time. If you feint, instead of attacking immediately and releasing, you give your opponent time to "spam" (they send two attacks at you in a row). If you do "microholds" and just release your attacks in random intervals with your feints, spamming against you is a gamble that many people will not take (good players will do often know how to do it "safely" anyways, though).
-Your goal should not be to learn how to spam and not block. Being able to spam (just attack so quickly that someone who fights you for the first time feints and gets hit) is a shitty strategy. If someone is good and playing cautiously, spam will not work. Spam is basically saying "you assume I am actually good enough at this game to block, so you'll feint, but I'm actually shit so I'll just keep attacking under the hopes that I spam through your feints." What has resulted is that good players will generally avoid feinting for the first exchange to weed out the retards who can't block at all and just spam, so if you're a retard who can't block at all you will die. However, that's not to say aggressive strategies aren't used by good players, I'm just saying don't use blind aggression as a substitute for learning how to block and actually last in a fight for more than 3 seconds
Floris Mod Pack (lot of small improvements, has both a "minor" version and a more complete overhaul version)
Prophesy of Pendor/Phantasy Calradia, basically both add magicu and stuff like that.
Geko Kujo- GRORIOUS NIPPON Sengoku era Jappin
Light & Darkness (Basically a story mode with spooky skellingtons and shit)
L'Aigle (Napoleonic era single player)>What are the best mods with most content (bonus points if it has some sort of a story line, so that all the nobles aren't just copy and paste)?