Which spec, do you believe would be easier for a Rogue such as myself to pick up on? I'm thinking Feral, I have heard though feral is "really hard to learn, and we don't have haste in this tier to be any good." Just trying to get opinions before I choose one
Feral is all about buff and debuff up time. If you know how to keep your bleeds and a self buff up and manage combo points you should be fine with feral. I love feral for various reasons; the rotation, such as it is, has been simplified that now energy management separates the good ferals from the greats. There is a lot of room in feral to have awesome DPS and help out your raid.
Feral's difficulty is overrated. With a good WeakAuras setup to clearly show buff/debuff uptimes and CDs, even a DoC rotation isn't that hard. I find it really enjoyable because it makes you think and plan ahead a little bit rather than just mashing a rotation and occasionally reacting to procs.
I've never liked boomkin, but that's just personal preference really.
If you are used to Sublety I can promise you that you'll get used with ferals pretty quick. If you have troubles there is nothing from stopping you using Ovale with Leafkiller's script that is inside Neirens ovale script addon.
It is hard to tell what spec is hardest it depends on how good you want to be, I play both specs but ofc Feral is my main spec on my main druid and balance is on my alt druid. Let's just not bring this thread into a flaming feast where you say my spec is harder then yours and continue the topic.