Ok, after using Lanturn's Tank set a lot since Moltres got Hurricane from BW2, I've found that it needs a much more specially defensive spread to fully counter LO Moltres. The current on-site spread gets 2HKOed by HP Grass an alarming 58.98% of the time after SR. For the supposed "best counter to Moltres", this is generally not good as a Lanturn switch-in to Moltres can usually be seen a mile away.
The EV spread I have found that always avoids the 2HKO from Timid LO Moltres's HP Grass after SR is 192 HP / 108 Def / 208 SDef with a Calm nature. With this special bulk, Lanturn can truly switch into LO Moltres with impunity as it will avoid the 2HKO from the strongest move Moltres has on it. Lanturn can also take special attacker better in general while the Defense EVs give Lanturn a cushion against physical attacks. Although it loses a lot of physical bulk, Slowking is generally better fit for the mixed wall thing thanks to its set of resistances (having good resists to both physical and special attacks) while Lanturn's resists are much better served for taking special attacks, especially from Moltres. I feel the RestTalk set should also adopt this EV spread as both the Tank and RestTalk sets are typically used for defensive /support purposes.
LO Moltres HP Grass vs. 192 HP / 208 SDef CalmLanturn 39.17% - 46.46% (3HKO)
As for Uxie, a spread for the Support set blarajan brought up in the RU Teambuilding thread lets Uxie take on Nidoqueen with more security than the on-site spread does. The current on-site spread gets 2HKOed by LO Modest Nidoqueen's Sludge Wave 58.98% (wow, that's a common theme in this post, lol) of the time. With an EV spread of 252 HP / 80 Def / 40 SDef / 136 Spd and a Calm nature, Uxie outspeeds Adamant Kabutops, is never 2HKOed by Modest LO Nidoqueen's Sludge Wave, and takes special attacks better in general than the current on-site spread. Since the tier has seemingly shifted to more powerful special attackers than physical attackers, Uxie's EV spread should reflect this while still not neglecting its ability to take on most Fighting types in the tier.
LO Nidoqueen Sludge Wave vs. 252 HP / 40 SDef Calm Uxie 39.26% - 46.61%
Hope I explained everything thoroughly.