Just to add to this:Jirachi isn't up there with Terrakion, Deo-D and Politoed. I thought we already came to that conclusion earlier in the thread ?_? A tier suits it perfectly.
Anyway, I'm here to propose for C rank lilligant. Of those who are willing to stray from the common venusaur and look for other chlorophyll sweepers, lilligant quickly comes to mind as one of the better choices. Its major perk over venusaur is that once the sun goes out from another starter or some random weather move carrying poke, lilligant can still have a shot of sweeping the opposing team. It does pretty well against rain with the abilty to outspeed Torn-T after a QD not to be underestimated, and most other components of standard rain ferrothorn aside being pretty vulnerable to a moveset of QD/ giga drain/ HP [ICE]/ Sleep powder with Life Orb and Modest Nature. Torn-T is cleanly OHKO's w/o rocks at +1, and nearly all of the common water types found are decimated by giga drain. If you manage to save your sleep powder for Ferrothorn, a full sweep without raim being up isn't out of the question. Both sand weather starters also happen to be weak to this beast, and some common components of sand fall into the same boat, further increasing lilligant's diversity. The lack of way to hit steels with this set is a let down, but its utility outside of sun overcomes that short coming and can help differentiate lilligant from venusaur. Its got a small niche on sun, and thats why I feel that there is a spot for lilligant in the C tier
You can use Venusaur and Lilligant on the same team *gasp*. Lilligant doesn't need to differentiate herself from Venusaur, she can just be used together, facilitating each others' sweeps etc. You could use something like EQ + HP Fire Venusaur with HP Ice Lilligant and you have a dominant offensive combo. Now, it's hard enough to stop ONE Venusaur. What happens when you add an even powerful second one (not the exact same but you get the idea)? Most teams can't handle that, especially if they rely on Heatran.
Something I'm not seeing is the utility set, which is really good as well. Honestly, I think it's better than QD! Healing Wish is just so amazing for sun teams, with bringing sweepers back that die fast such as Volcarona and Victini and giving Ninetales the ability to live even if it is range of being killed by SR. Tyranitar and Politoed will just not worry about staying alive and then boom die and be left with sun when Ninetales gets Healing Wish recovery. It's also got Sleep Powder, allowing stuff like SD loom to set up super easily. If you catch the weather inducer then Ninetales has a field day. And Leaf Storm. Leaf Storm OHKOes Tyranitar in sand. It's that powerful. HP Rock is pretty cool too because Volcarona is a pain in the ass for sun.
On a similar note, nominating Victreebel for C tier. Victreebel's a really cool Chlorophyll sweeper. Victreebel is cool because of Weather Ball, which gives it a much more powerful HP Fire. You run Leaf Blade / Growth / Weather Ball / Sludge Bomb and have a bit more powerful Venusaur where Weather Ball actually hits mons like SDef Rachi hard. You can also run Weather Ball / Leaf Blade / HP Ground / Sludge Bomb and have so much coverage to hit everything hard. Yeah, it's quite frail, but Victreebel's a great mon. And you can also pair it with Venusaur for an amazing kill everything combo.