With 7/3/2 or 8/3/1 with the assumption Int is covered by the headband I'd definitely go 16/14 over 14/16 or 16/16 with weak Con. If you were going with the Monk build then you'd have a conflict with the Dex gloves for the Sparkle Hands but with a caster build you should be fine; shield / boots / staff / amulet / armor are the slots for the stuff which will be relevant and important to you, not that you have to use all of them all the time but those are the slots the important stuff uses. You do miss out on the 3 temp hitpoints on lightning charge gain helmet with the intellect helm, but it's likely very worth it.
