Neither lol. True story, am using Wreath of Lightning up to 115, after that I swap to trapped till 125, then stricken if I go higher - this for SOLO play, in groups you need every bit of dmg you can squeeze cause we’re not BS necros (then again I don’t dps as DH in groups even in speeds, unless they are like 110 top).
The rule of tumb is: are you killing the RG in a reasonable amount of time w/o power pylon and stricken? Then go trapped. No? Get stricken.
Even if you manage to get awesome maps and pylons and clear in 5m and spawn RG, if you don’t have stricken and you spend 3-5m to kill it, you just invalidated your fast clear fighting the RG.
In other words, for speeds use whatever gives you fastest clears, for pushing use stricken. For example in my 130 clear, my RG kill took 2 mins without power / condu / speed - with stricken (no adds boss, that would have speed it up considerably, at least by 30s). If I did not have stricken but trapped, I would be looking at 4-5m kill of RG.
PPS: higher levels means levels starting from where you are out of your comfort zone (ie: you can clear the GR irrelevant of what maps / mob types / elites you get), where getting a bad map, bad mob types, elite affixes - can ruin the run. And this is not a set number, it is based on your build, skill / passive / gear choices, paragon levels, skill to play the build, damage / toughness etc. So for you 110 can already mean high, while for others high means 120 or 140.
PS: all that changed, got a primal focus identical to my primal restraint, so it’s dex / chd / AD on both and socket (not perfect I know but hey it works), a better quiver, and now am up from 108% AD to 148% AD, losing only 7% ChC (still close to 1:10 ratio, 51% crit, 480%ish CHD). With that I actually feel confident to give 140 a go Did 125 with 1 bs necro, 1 zbarb and 1 zdh, and I was melting stuff, felt really good (I mean like instantly popping trash just by passing through, no spears from necro, just DH debuff + bolas).