dude I literally have 200 hours on bannerlord multiplayer and can annihilate pretty much anyone from bannerlord in melee fight, while being merely a warband player, simple because bannerlord combat system is trash and has nothing to master, you literally can't do anything in this game except simple hits, with addition of kick slashes in battle/duel + feints in duels, meanwhile in warband you could do:
Chambers; reactive inverse chambers to hit people through block; chambers with holding afterwards to confuse enemy; holds; spamming; actually play around ur footwork to do outranges on everyone, even in battle etc I can continue this list forever, but the thing is anyone with more brain cells than a headcrab can realise the warband combat is superior to bannerlord