What i figure is, that the max hp you can have is 3000 - 4000
Sounds a lot, but when things start hitting in the 200-500 range and above, that doesnt let you take that many hits, aura's and self heal aside.
Now, say that you get to 250 in one melee branch, and then start working on another, every 10 levels or so in your following branch gives you the option to buy more hp and stamina. Or generally in all melee branches each 10 levels (instead of every 5 in your highest level) gives you the option to buy more.
This would also apply to other skills to (digging other lands adds more focus, magic would add more sap (and hp if not purchased by melee). Crafting would add more focus if not already bought by digging.
Not having fully read the "spice up melee" thread, i reckon certain stanza's should be branch based only and not be a generic pool where the additional branches become ways of making more points.
e.g. Knife based combat, special ways of attacking, instead of "aim at leg" you could have "stab at ribs"
Sword could have special attacks named "heavy swing" (or much better named

How about chucking in the javing like disarm stanza to close combat or unarmed combat?
These things like i said would only be able to be purchased by levelling certain things, so would add more variety to PVP too, as some people would have some stanzas that others havent levelled, rather than lets see who got the highest ignore armor or increased damage.