I can see Ukko's being hyped at 10k, but Hi? Lol. Victory Smite and Ukko's Fury are the two powerhouses in the Empyrean WS business, Blade: Hi is very much third place. It tends to act fairly similar to Chant du Cygne as far as damage goes. 3k averages are still respectable, but they're not the 4k-5k that Ukko/VS can average and Mnk/War are both in significantly more favorable positions as DDs to start with than Nin et al.

On topic with the OP, Rudra's is better as a non-crit WS because THF and DNC can force-crit, and non-crit WS almost always have significantly higher fTP values. If you're forcing a crit anyways, you're just getting the best of both worlds.

On the tangent of Empyrean WS being godmode, really there are only a few very strong examples that people bring up whenever they want to make a case for Relics/Mythics. The only two super strong Emp WS are Ukko's Fury and Victory Smite, mainly because Warrior and Monk are so powerful on their own. Blade: Hi, Chant du Cygne, Wildfire, Jishnu's Radiance, Torcleaver, and Tachi: Fudo are all powerful weaponskills in their own right, but (depending on the WS) either the jobs that wield them are unsuited to properly follow up and sustain heavy fire, or they're simply not that much stronger than the previously available options.

There are also Empyrean WS like Cloudsplitter, Myrkr, Dagan, Camlann's Torment, Quietus, and Rudra's Storm which either require a paired JA to be good, don't deal any damage at all, or just plain suck. I don't see any Mjollnir owners complaining about how their Relic is outclassed by an Empyrean.

sidenote: 5k Ukkos should be an average, as in for every wiff there's another 6k+ popping out, rather than a hard cap. I'd question what sort of food the War you're talking about is eating if they're rarely breaking 5k. Personally, 4k-5k Smites are typical for me when Impetus is down, followed by solid 7k-9k Smites every WS until Impetus wears or resets. The removal of the Crit Dmg+ cap was fairly phenomenal for jobs that can cap it.