cleric is better for preserving those expensive elites when combined with 15-20% hospitals, or using no hospitals if combat losses aren't particularly important. since human does not always army-in-army-out, tact is not as useful as it would be for a pure attacker, but combat losses are going to be useful every time human sends out.

since your armies should be primarily elite, nightstrike is less of a threat to you, though tactician is nice for stopping kidnaps, riots, and the rogue ops. bear in mind that CS can be removed by vortex, and human is already capable of better mTPA than other attacker options. CS is useful for stopping petty ops from other attackers, and alleviating a thief weakness if suffering offensive thief losses, but if someone really wants to wreck your prov with thievery they will vortex beforehand.

i find warrior is useful for enhancing human's elite, allowing them to keep more defense at home or inflict more damage depending on necessity. it's a lot more situational than cleric and demands lots of hospitals, but once they are in war they are in good shape and stand up very well to being chained.

for any human attacker (or any attacker period) you will want at least 15% tg, preferably 20% or better. for tactician that will probably be higher. you really do not need so many banks or homes - 5% banks will be sufficient. better to grow and build banks during war, when there is economy to enhance.