Since i am bored, I will repeat myself again since I've said this like 10 times so far.
Wiz/Cleric >> Wiz/Bard.....i see wiz/bard people get raped by every giant that spawns near them if they don't go for their wolves instead. While I just watch them die, then bless spell and kill the giant. I have to zerk atm, but I only have fire bolt maxed and the rest of my skills do like 3-4k less damage than fire bolt on lvl 64 mobs. If I was not getting the buffs from the cleric mastery and the heals [I play cleric in parties], I would be killing giants without zerking and I can take one out every 3 mins if I have to.
I also don't need to use life control to level since I can afford to take a few hits while my wolf finishes the job and I nuke another one, having the auto healing every 5 secs has saved my life so many times when a champ suddenly crits me for almost all my hp.
for me, i prefer clerick to bard, coz a clerick rite, if u r unable to get ppl to party wif u rite, u r at least able to solo monsters because of ur heal, but for bard rite, u cant heal so quickly, so those monsters that deals heavy melee dmg might juz kill u as ur pots have a cooldown time.