Comparing them is pointless, their personalities are too different. While I haven't even had time to talk with Kalph, he seems to be funny and charismatic. Iban is compassionate and caring. Both have their starfish moments but even then they act different. I think that both are useful members of the community and I'm glad that they're here.
Even though my opinion doesn't matter I'm glad that both are here and I hope to have intelligent and thoughtful conversations with them at some point.