Let me tell you my opinion on your patch list.
Citron, Rose, Chomper, and Corn: Agree with you on that. Don't forget that the rose that have a charge shot can't jump and they also move slower. I would like that fixed.
Pea: I honestly don't agree on nerfing pea gatling and if they do, then they should nerf the engineer's turret as well, since it's practically the same thing.
Sun: I don't know on how Solar Flare Beam works, so I'll try it later. Also, the thing is with Vampire Flower, is that she has low health, she's like the agent pea of sunflowers except a little bit different, that's why she needs that damage. She doesn't have the fire rate of shadow.
Cactoos: If your going to ask for more health for garlic drone, why would you want to nerf Parrot Pal (not exactly sure if you mean HP nerf or another nerf, be somewhat more specific please.) As for Artichoke Drone, why would you need a buff for it? See the thing is I think I know what PopCap was thinking. I think they were thinking that Parrot Pal doesn't have two separate abilities so they just put both in one.
Imp: Don't forget the HP nerf that they need to do.
Hero: Don't forget a turbo twister nerf.
Pirate: For Parrot Pal, like I said with cactoos, it's either a buff for garlic drone or a nerf for Parrot Pal. Personally, I would go for nerf Parrot Pal so they both won't be overpowered for the most part. And don't forget captain sharkbite.
Soldier: Why would you want four bullets for Super Commando? That would make him really OP. He already has a reload upgrade the make his reload faster and one bullet does around 20 damage. That equals 60 damage approximately. So if you add a extra bullet, it would be 80 damage. That could vanquish a Vampire Flower. There's a reason they removed it from GW2 and GW1 was the reason why.
Engineer: AC Perry needs a nerf, either by making the freeze coming a couple of bullets more, or by reducing his fire rate, and also what I said about him in Peashooter section.
Scientist: Agree with you on the most part, but I would also like to nerf the major characters that are getting the most kills, like the marine biologist.
All-Star: His damage is fine, it doesn't need a buff. And I do agree with you on Tennis Star, maybe reduce is HP to 175?
And I agree with you on the bug fixes but there are more, and I don't want to get into detail since this is already so long.
Anyway, that's my opinion on your patch list. I know it's alot, but I do tend to get into detail with this stuff.