I was mucking about running brave-ly* level 8 quests with my two trusty repeaters. One is a cannith crafted masterful holy burst with slotted vampire slayer and for non-evil enemies I would switch to old random +1 desert sand heavy repeater. As I was running stormcleave outpost, I realised that I would keep using my desert sand one all the time. The vast majority of enemies would die after two volleys from any repeater; the few enemies that had more hp like giants, would take three or four volleys OR one procurement of slicing winds. Even though the crafted one gets the +0,5w from paragon, an extra 1d6 from holy compared to screaming and the bonus 1d4 light, it doesn't make a difference. It's always two volleys.
That's why that extra 600 or so damage from lightning strike is so good; it makes all the difference against enemies that matter.
Conclusion: bring back old random prefixes and suffixes please! I want my riptide repeater, my pandemonium repeater and a "flaming burst" desert sand repeater!
*brave-ly: running at level for elite bravery streak bonus ie for level 8 quests at level 10.