I'll provide a few details to help the analysis.
•I want a attribute + 1 (20%)
•I am considering this for death, curses and perhaps fire (although I have Rago's fire wand and the Kindlerock already), and healing prayers (with a view to the same principals on all casters)
Rod + Focus
Rod
•Energy + 5 (>50)
•20% fast recharge
Focus
•Energy + 12
•Attribute + 1 (20%)
•HP + 30
Staff
•Energy + 10
•20% fast recharge
•20% fast cast
•Attribute + 1 (20%)
•EITHER HP + 30/Energy + 5/Armor + 5
Differences
•Staff provides 20% faster cast at the expense of either (30 HP and 2 energy >50, gain 3 energy <50) or (7 energy >50, 2 energy <50)
•Staff is more flexible (choice of 3 heads)
I mainly wish to know if the trade-off for a faster cast is worth it for death/curses where soul reaping provides energy management anyway. For my ele, I have a slightly different combination that provides more faster recharge and slightly less faster cast, but no bonus energy or health, which I am fairly happy with as is.
My monk has the staff for healing, even though I have been told healing prayers +1 isn't the best mod for a heal monk - I went with insightful 20/20 heal staff of healing prayers for the faster cast on the (relatively) long cast of heal spells. Would you recommend anything else in this situation, perhaps a 20/20 icon with a holy rod giving 20+20/20 with 5 energy >50.
Any insight into this would be much appreciated. I'll also point out that I only PvE, if that has any relevance to the discussion - these weapons won't make it into the PvP environment so it doesn't matter if they aren't suitable there as long as for PvE they help me

thanks