For Noble, make it +2 faction prestige and -10% unrest to all your cities.
Agreed, however unless faction prestige becomes more useful (pulled into giving a bonus to diplomacy or some traits), this could be changed to a flat +1 growth, or +0.5.
I can't really say how good the 30% bonus in trade is, I have used Diplomat and have traded, but can't ever think that I really noticed a huge difference, as the AI tends to rape you in deals
I have noticed trading technology that the numbers are tighter. But some AI go into ass-hole mode when it comes to trading for goods/money/influence.
For Hunter, make it 50% damage to everything.
Perhaps make it ranged damage only. A ranger's profession, a rangers damage boost. Though the bonus to all damage would be nice on assassins...
Well to be fair, Altar isn't much a diplmat, he is a adventurer in storyline if you playing single player storyline, Now I don't know what krax personal in storyline...hmmm.
Give him General. hehehe
You should definitely think about pairing a Diplomat sov with a faction that has Legacy of the Serrane, as you'll be earning influence every time your caravans complete a trip. Long story short, you'll never run out of influence so long as you have caravans running. Yay!
I had this devious idea, however Guile didn't turn it into 6 Influence.