Hey, I tried to find out which of these two equipments are better than the other. I wanted to do my own research after watching Shocks video, so credits to him too.
Here follow the calculations I made, but disclaimer: its hard to determine what the exact mechanic the dark crown works with, so this should be taken with a grain of salt. Enjoy:
MP: base stats lvl 95 = 765 dps, 4510 hp
Dark crown:
+30% dps and hp, +11% ASI, +1200 hp
LvL 3 Dark crown mp stats:
765 + (765 × 0.3) = 994.5
994.5 + (994.5 × 0.11) = 1104 dps
hp:
4510 + (4510 × 0.3) + 1200 = 7063 hp
Normal Mode
with dark orb → 838 (+73) dps and 5650 (+1140) hp
838 + (838 × 0.3) = 1089.4 dps
1089.4 + (1089.4 × 0.11) = 1209.2 dps
hp:
5650 + 1200 = 6850 + (6850 × 0.3) = 8905 hp
This works if multiplier multiplies the whole stat
With Meteor staff (assuming all hits are 100%):
850 : 5 = 170 dps
170 + 125 = 295 dps
838 (pair with orb) = 838 + 295 = 1133 dps
hp = 5650 + 1381 = 7031 hp
Difference is:
1209 − 1133 = 76 dps
8905 − 7031 = 1874 hp
We can agree that the dark crown is just better in normal mode when looking at the stats.
When it comes to the Legends I modifier:
-20% dps and hp
Take this off the total with dark orb (and crown)
5650 + 1200 = 6850
6850 - (6850 × 0.2) = 5480 hp
838 - (838 × 0.2) = 670.4 dps
Added dark crown power:
5480 × 0.3 + 5480 = 7124 hp
670.4 dps × 0.3 + 670.4 = 871.52 dps
871.52 × 0.11 + 871.52 = 967.4 dps
Meteor staff:
670.4 + 295 (170 + 125) = 965.4 dps
5480 + 1381 = 6861 hp
Difference now:
dps = 967.4 - 965.4 = 2 dps (lol)
hp = 7124 - 6861 = 263 hp
Its debatable which one is better in Legends I, but the crowns stats are just slightly better. The minion prince does have less chance to waste hits, unlike the meteor staff. The meteor staff does have the advantage of only hitting defences though, but I do not know if thats enough of an advantage to be better than the crown (at th18). Ultimately, its up to you to decide. The difference in legends is too small to have one certain winner.