Hopefully I can clear up any confusion between Gdruid FCing and Rdruid FCing.
TL;DR - Guardian Druid FCing will always be best if you have a dedicated healer with you at all times. Otherwise, Resto Druid FCing is the way to go.
Guardian Druids:
Out of all the FCs there are...Guardian Druids have the highest armor, 2nd highest passive stamina increase(pal being 1st), 2nd best passive dmg reduction(war/monk being 1st/tied), the best mobility(tied with monks depending on their talent), and the hardest to kill at 4+ Stacks(due to Wild Charge). You only gain these defensive increases while in bear form. Even though you are the fastest, you are most vulnerable if you are outside of Bear Form.
Guardian Druid FCs should always use Wild Charge. If you ever have a teammate at a different level of area than you(IE: your in Flag room and they are on roof) then you can wild charge up to them every 15 seconds from your flag room to roof. Wild Charge is easily the most overpowered FCing ability if used correctly.
However the idea to Guardian Druid FCing is only viable(in my personal opinion) if you have a dedicated healer with you at all times.
Guardian Druid's Rejuvenation isn't bad at all(especially if you have intellect gear on) however, it is not a spammable ability. Also, every time you use Rejuvenation; you no longer have your defensive stats. It would not be difficult at all to pressure a Guardian Druid FC into making them Heal themselves(if they were by themselves) and hit them with their hardest ability right when they try to rejuv.
That being said, a guardian druid FC should only use rejuv if you are not being focused and only to be used defensively for others > yourself. But while in Bear form, you are quite difficult to kill especially if you are geared correctly. I would never try Guardian Druid FCing unless I knew I had a dedicated healer with me.
A simple example would be:
The other team is trying to kill your healer, but no one is targeting you. Feel free to through a Rejuv for your healer.
Resto Druids:
Resto Druid FCing is definitely viable. You are basically the ultimate toolbox and you can pull anything out of your pocket.
1. Your heals are very strong, you can easily keep yourself alive against a few people combined with your mobility and bis gear. If your team is ever lacking heals, you can offheal while still fcing.
2. If you have a hybrid set(fang gear), you can easily keep your healing stats up but also have the damage output of an average twink. At the cost of your defensive stats of course. But this allows to you 1vs1 anyone if you're by yourself
3. Even though you are a healer, bear form lets you act as a tank. Even though you do not have the defensive abilities of a guardian druid(passive abilities), you can still put a Rej up and sit in bear form. This easily lets you tank quite a bit of damage.
4. The idea of Resto Druid FCing is to basically let your entire team go on offensive and you take care of yourself. For pugging, this is great! If no one has to worry about you needing heals or dps, then everyone can go on the EFC(assuming all 9 of your teammates are playing objective in the pug). This is why Pugging as a Resto Druid FC is really nice; you basically carry your entire team.
5. Since the idea of Resto Druid FCing is to always 'be by yourself' or 'to play in pugs', wild charge would not be the best choice. And in a case where you'd hit 4+ stacks, neither would Feline Swiftness(becomes useless when u hit 4+). That being said, Displacer beast is your next best bet.
6. Displacer Beast allows you to not only gain a teleport(blink) but also to increase your movement speed while in cat form by 50% for 4 seconds every 30 seconds when needed. This would put your movement speed at 175% for 4 seconds + the 20yrd blink. And even at 4+ stacks, this will still benefit you since you have a blink!
I do think it is very possible to pull off Rdruid FCing in a premade. Most premades won't fight a team with any more than 3 healers, even if it's a rdruid FC. In any premade situation, you would always need at least 1 healer with you when you have the flag. And as soon as you hit 10 Stacks, you'll easily get 1shotted unless you have the defensive stats of a Guardian Druid. But then again, any FC is incredibly vulnerable to 1shots @10 stacks.
My personal opinion
If you ever Solo Que or if you are not premading, Resto FCing would be the way to go.
If you are ever queing with a dedicated healer, or if you're premading, I would go Guardian. It's easier for your healers to keep you up, and wild charge is gamebreaking at this level(and at endgame).
If you have any other questions about Druids, feel free to PM me
