Maybe, maybe if they'd included some of those 4-relic gems at 85, then maybe, maybe you would have had a tough decision to make. As it is, the majority seem to think that your beauties are still best-in-slot. Think I've seen a thread or two around reaching that exact conclusion.
Although, and I'll volunteer right away I'm probably in the minority on this, the level 80 gem True Gem of the Rising Moon is getting close to being on par. Two major stats on one relic is pretty nice plus both physical and tactical mastery. For RKs or minis, no way, but since we still have to get our staff and whack-a-mole now and then, it isn't too shabby. If I had the option to choose between the two, I'd have to think about it for a while. But I don't. Jealousy.
In seriousness though, since I only PvE and only find challenge in trying to solo group content, if I did have the choice, I'd lean towards the Gem of the Rising Moon. If I was only concerned about dps or PvMP, I'd lean towards your two antiques. Either way, I agree with you. As gems go, nothing in the new level 85 set is worth slotting.
85 LM Berewen, 85 Burg Balculus, 85 Guard Benferth