@ Yonko7's Moltres: Please make Life Orb and HP Grass the main option and Lefties SubRoost as Other Options. Moltres needs the LO boost to soften up the rain counters, and HP Grass for Lanturn!
As for its shortcomings, you can mention how Seismitoad can switch into Electric- and Rock-type moves aimed at Moltres. Also for Kabutops, remove the mention of Aqua Jet, since that's most likely the move that will be replaced with Rapid Spin.
Nice find, Yonko7!
@ Phazon00's Ludicolo: Why 30 Atk / 30 Def? It doesn't have Hidden Power Ice -.- Also give a bigger emphasis of its Grass-typing, imo, providing it the necessary STAB to 2HKO these bulky Water-types like Lanturn and Slowking which would otherwise tank weak Grass moves with ease.
Under shortcomings, please add specially-defensive Clefable and Cryogonal into the list. More importantly, you should elaborate more about why Kabutops, etc are good teammates. Specifically, Kabutops can OHKO Roserade with an unboosted Stone Edge after SR. It can also replace Aqua Jet for Superpower to remove pesky specially-defensive Normal-types and Ferroseed.
Other good teammates include physically offensive mons like CB Escavalier and SD Gallade that can easily pierce through Roserade, Amoonguss, Clefable's uninvested defense while butchering Ferroseed as well.
Mention that its Speed is sometimes not sufficient even while in Rain. Scarf Galvantula and faster can revenge-kill Ludicolo. Having a faster Swift Swim member like Kabutops and Qwilfish certainly helps. Strong priority moves from Entei or Spritomb / Absol is also problematic. Kabutops come in handy here because it doesn't take much from Entei's ExtremeSpeed. Aqua Jet from Kabutops, Qwilfish, Floatzel, etc can be useful to make Sucker Punch from Spiritomb & Absol fail.
Unburden Hitmonlee can Fake Out Flinch and end up faster than Ludicolo as well. Again, strong Water-boosted Aqua Jet from the likes of Basculin helps. Volbeat can switch into Hitmonlee's Fake Out and lock it into this now-useless move, force it to waste Unburden boost. Or you may simply pack a bulky Psychic Rain summoner like Uxie or Creselia.
I think a heavy emphasis on Rain summoners that complement well with Ludicolo is key. Lanturn can absorb Electric-type moves like T-Wave and set up Rain reliably. It has a slow Volt Switch to bring in Ludicolo safely into the field after setting Rain. Even more, it has access to Heal Bell, which is nice if Ludicolo ever gets paralyzed or Scald Burned. I already mentioned Volbeat and Uxie / Cresselia above. Cresselia is nice for Lunar Dance, to restore Ludicolo to full-health, thereby promoting the 2nd surge of Ludicolo's rampage.
There's quite a bit you can say in OO. Elaborate that Focus Blast is good for Ferroseed and for Clefable outside of Rain. Rain Dance is not really bad on Ludicolo because it will be taken out (it's quite bulky and does an excellent job at forcing switches), but mostly because Ludicolo often requires two hits to take down bulkier mons, so giving the opponent a free turn while it sets up Rain means that bulkier Pokemon now has a chance to retaliate.
Also mention Timid Nature. It's quite useful for outrunning Scarf Genesect, as well as being faster than Adamant Kabutops and Modest Nidoqueen outside of Rain.
(Sorry, I have much to say about Ludicolo!)
I'll comment on Smeargle & Lanturn later, since I want you to perfect your Ludicolo analysis first. Thanks for doing this Phazon00 :)