Other than both being voxel-based with destructible environments, I don't think there's a reason to compare the two games. VS is heavily focused on survival, building and very deep and complex crafting systems while Hytale is more of an action RPG with light base building mechanics like Terraria.
If I were forced to compare them though I'd agree with your comments on combat. I'd like a little more monster, hostile animal and weapon variety. I don't want to overcomplicate the combat the way Minecraft eventually did but even something like a slow swinging warhammer that briefly stuns enemies would be cool. Give each weapon a right click action with high cooldown the way spears can be thrown, like let the falx do a slightly higher damage AOE slice that leaves you open for a couple seconds, shortsword could get a parry or longer range stab... just a few ideas. It looks like we're seeing the beginnings of advanced weapon customization with the next update, annealing and quenching are really hype to me.
Also, our mob variety is kinda bad right now, would be cool to see some rare aquatic or flying enemies that require more strategy than just chasing and hacking enemies to death. Maybe some kind of mini boss that spawns during storms and has decent drops to give you a reason to actually engage with them.